performance improvements for large history lists; fix problem with not unwind-protect...

author Chet Ramey <chet.ramey@case.edu>

Wed, 14 Feb 2024 14:43:03 +0000 (09:43 -0500)

committer Chet Ramey <chet.ramey@case.edu>

Wed, 14 Feb 2024 14:43:03 +0000 (09:43 -0500)
author Chet Ramey <chet.ramey@case.edu>
Wed, 14 Feb 2024 14:43:03 +0000 (09:43 -0500)
committer Chet Ramey <chet.ramey@case.edu>
Wed, 14 Feb 2024 14:43:03 +0000 (09:43 -0500)
diff --git a/CWRU/CWRU.chlog b/CWRU/CWRU.chlog

index 9498c76290ba291b023d8dc4f7226dc1e408b2a3..77b8ad5aaa0fe327e41e8bfb4aaa3717821af703 100644 (file)
--- a/CWRU/CWRU.chlog
+++ b/CWRU/CWRU.chlog
@@ -8571,3 +8571,39 @@ jobs.c
           way that we don't mark background jobs that exit cleanly as notified
           Inspired by a discussion with Robert Elz <kre@munnari.oz.au> and
           https://lists.gnu.org/archive/html/bug-bash/2024-01/msg00189.html
+
+                                   2/9
+                                   ---
+lib/readline/history.c
+       - DEFAULT_HISTORY_GROW_SIZE: bump up to 256
+       - real_history, real_history_size: the true history array and its
+         allocated size. the_history begins a user-visible window into this
+         list, extending for history_size entries
+       - history_list_grow_size: compute how much to extend the history list;
+         increase by roughly sqrt(history_size), don't extend by less than
+         (new) DEFAULT_HISTORY_GROW_SIZE
+       - history_list_resize: possibly resize/realloc real_history and reset
+         the_history to real_history and history_size to real_history_size
+       - advance_history: make the `window' that the_history provides into
+         real_history advance to simulate dropping an initial entry; don't
+         need to memmove all the entries any more
+       - add_history: call advance_history as necessary to move the_history
+         window
+       - add_history: call history_list_resize as necessary
+       Report and initial patch from Casey Johnson <strykre@hotmail.com>
+
+                                  2/12
+                                  ----
+bashline.c,lib/readline/bind.c,lib/readline/display.c
+       - replace some sprintf calls with snprintf to appease clang
+
+execute_cmd.c
+       - execute_simple_command: unwind-protect this_command_name, since we
+         assign it to something we will free if unwind-protects are run
+       - execute_function: unwind-protect currently_executing_command, since
+         execute_command_internal will change it to something will will free
+         if unwind-protects are run
+         Report from Grisha Levit <grishalevit@gmail.com>
+       - execute_function: if we didn't compile with debugger support, restore
+         currently_executing_command after run_debug_trap, like in other
+         cases
diff --git a/bashline.c b/bashline.c

index c09152c521853fa7b83e56b044a1d51b66006a69..d51693b2ee3db7134bfa403aefad42c1ca3e1704 100644 (file)
--- a/bashline.c
+++ b/bashline.c
@@ -949,8 +949,11 @@ edit_and_execute_command (int count, int c, int editing_mode, const char *edit_c
  
    if (rl_explicit_arg)
      {
-      command = (char *)xmalloc (strlen (edit_command) + 8);
-      sprintf (command, "%s %d", edit_command, count);
+      size_t clen;
+      /* 32 exceeds strlen (itos (INTMAX_MAX)) (19) */
+      clen = strlen (edit_command) + 32;
+      command = (char *)xmalloc (clen);
+      snprintf (command, clen, "%s %d", edit_command, count);
      }
    else
      {
diff --git a/doc/bash.1 b/doc/bash.1

index a259ad6dbd4710677eea2977f92bae4e4bd6cb49..66854edc111a42cb494231c71a46f07ea97283f9 100644 (file)
--- a/doc/bash.1
+++ b/doc/bash.1
@@ -39,6 +39,19 @@
  .\" .}f
  .\" ..
  .\"
+.ie \n(.g \{\
+.ds ' \(aq
+.ds " \(dq
+.ds ^ \(ha
+.ds ~ \(ti
+.\}
+.el \{\
+.ds ' '
+.ds " ""\" two adjacent quotes and no space before this comment
+.ds ^ ^
+.ds ~ ~
+.\}
+.
  .\" File Name macro.  This used to be `.PN', for Path Name,
  .\" but Sun doesn't seem to like that very much.
  .\" \% at the beginning of the string protects the filename from hyphenation.
@@ -212,7 +225,7 @@ Display a usage message on standard output and exit successfully.
  Execute commands from
  .I file
  instead of the standard personal initialization file
-.I \(ti/.bashrc
+.I \*~/.bashrc
  if the shell is interactive (see
  .SM
  .B INVOCATION
@@ -230,10 +243,10 @@ library to read command lines when the shell is interactive.
  Do not read either the system-wide startup file
  .FN /etc/profile
  or any of the personal initialization files
-.IR \(ti/.bash_profile ,
-.IR \(ti/.bash_login ,
+.IR \*~/.bash_profile ,
+.IR \*~/.bash_login ,
  or
-.IR \(ti/.profile .
+.IR \*~/.profile .
  By default,
  .B bash
  reads these files when it is invoked as a login shell (see
@@ -243,7 +256,7 @@ below).
  .TP
  .B \-\-norc
  Do not read and execute the personal initialization file
-.I \(ti/.bashrc
+.I \*~/.bashrc
  if the shell is interactive.
  This option is on by default if the shell is invoked as
  .BR sh .
@@ -342,8 +355,8 @@ is invoked as an interactive login shell, or as a non-interactive shell
  with the \fB\-\-login\fP option, it first reads and
  executes commands from the file \fI/etc/profile\fP, if that
  file exists.
-After reading that file, it looks for \fI\(ti/.bash_profile\fP,
-\fI\(ti/.bash_login\fP, and \fI\(ti/.profile\fP, in that order, and reads
+After reading that file, it looks for \fI\*~/.bash_profile\fP,
+\fI\*~/.bash_login\fP, and \fI\*~/.profile\fP, in that order, and reads
  and executes commands from the first one that exists and is readable.
  The
  .B \-\-noprofile
@@ -352,18 +365,18 @@ option may be used when the shell is started to inhibit this behavior.
  When an interactive login shell exits,
  or a non-interactive login shell executes the \fBexit\fP builtin command,
  .B bash
-reads and executes commands from the file \fI\(ti/.bash_logout\fP, if it
+reads and executes commands from the file \fI\*~/.bash_logout\fP, if it
  exists.
  .PP
  When an interactive shell that is not a login shell is started,
  .B bash
-reads and executes commands from \fI\(ti/.bashrc\fP, if that file exists.
+reads and executes commands from \fI\*~/.bashrc\fP, if that file exists.
  This may be inhibited by using the
  .B \-\-norc
  option.
  The \fB\-\-rcfile\fP \fIfile\fP option will force
  .B bash
-to read and execute commands from \fIfile\fP instead of \fI\(ti/.bashrc\fP.
+to read and execute commands from \fIfile\fP instead of \fI\*~/.bashrc\fP.
  .PP
  When
  .B bash
@@ -378,7 +391,7 @@ behaves as if the following command were executed:
  .PP
  .RS
  .EX
-if [ \-n \(dq$BASH_ENV\(dq ]; then . \(dq$BASH_ENV\(dq; fi
+if [ \-n \*"$BASH_ENV\*" ]; then . \*"$BASH_ENV\*"; fi
  .EE
  .RE
  .PP
@@ -400,7 +413,7 @@ shell with the \fB\-\-login\fP option, it first attempts to
  read and execute commands from
  .I /etc/profile
  and
-.IR \(ti/.profile ,
+.IR \*~/.profile ,
  in that order.
  The
  .B \-\-noprofile
@@ -451,7 +464,7 @@ or the secure shell daemon \fIsshd\fP.
  If
  .B bash
  determines it is being run non-interactively in this fashion,
-it reads and executes commands from \fI\(ti/.bashrc\fP,
+it reads and executes commands from \fI\*~/.bashrc\fP,
  if that file exists and is readable.
  It will not do this if invoked as \fBsh\fP.
  The
@@ -770,7 +783,7 @@ The return value is 0 if the string matches (\fB==\fP) or does not match
  Any part of the pattern may be quoted to force the quoted portion
  to be matched as a string.
  .IP
-An additional binary operator, \fB=\(ti\fP, is available, with the same
+An additional binary operator, \fB=\*~\fP, is available, with the same
  precedence as \fB==\fP and \fB!=\fP.
  When it is used, the string to the right of the operator is considered
  a POSIX extended regular expression and matched accordingly
@@ -795,7 +808,7 @@ since normal quoting and pattern characters lose their meanings
  between brackets.
  .IP
  The pattern will match if it matches any part of the string.
-Anchor the pattern using the \fB\(ha\fP and \fB$\fP regular expression
+Anchor the pattern using the \fB\*^\fP and \fB$\fP regular expression
  operators to force it to match the entire string.
  The array variable
  .SM
@@ -1157,7 +1170,7 @@ retains its special meaning only when followed by one of the following
  characters:
  .BR $ ,
  .BR \` ,
-\^\fB\(dq\fP\^,
+\^\fB\*"\fP\^,
  .BR \e ,
  or
  .BR <newline> .
@@ -1180,7 +1193,7 @@ quotes (see
  .B PARAMETERS
  below).
  .PP
-Character sequences of the form \fB$\fP\(aq\fIstring\fP\(aq are treated
+Character sequences of the form \fB$\fP\*'\fIstring\fP\*' are treated
  as a special variant of single quotes.
  The sequence expands to \fIstring\fP, with backslash-escaped characters
  in \fIstring\fP replaced as specified by the ANSI C standard.
@@ -1217,10 +1230,10 @@ vertical tab
  .B \e\e
  backslash
  .TP
-.B \e\(aq
+.B \e\*'
  single quote
  .TP
-.B \e\(dq
+.B \e\*"
  double quote
  .TP
  .B \e?
@@ -1250,7 +1263,7 @@ a control-\fIx\fP character
  The expanded result is single-quoted, as if the dollar sign had
  not been present.
  .PP
-A double-quoted string preceded by a dollar sign (\fB$\fP\(dq\fIstring\fP\(dq)
+A double-quoted string preceded by a dollar sign (\fB$\fP\*"\fIstring\fP\*")
  will cause the string to be translated according to the current locale.
  The \fIgettext\fP infrastructure performs the lookup and
  translation, using the \fBLC_MESSAGES\fP, \fBTEXTDOMAINDIR\fP,
@@ -1430,9 +1443,9 @@ with the value of each parameter separated by the first character of the
  .B IFS
  special variable.
  That is,
-.B \(dq$*\(dq
+.B \*"$*\*"
  is equivalent to
-.BR \(dq$1\fIc\fP$2\fIc\fP.\|.\|.\(dq ,
+.BR \*"$1\fIc\fP$2\fIc\fP.\|.\|.\*" ,
  where
  .I c
  is the first character of the value of the
@@ -1458,15 +1471,15 @@ with each positional parameter separated by a space.
  When the expansion occurs within double quotes,
  each parameter expands to a separate word.
  That is,
-.B \&\(dq$@\(dq
+.B \&\*"$@\*"
  is equivalent to
-.B \&\(dq\&$1\&\(dq\ \(dq$2\(dq\ .\|.\|.
+.B \&\*"\&$1\&\*"\ \*"$2\*"\ .\|.\|.
  If the double-quoted expansion occurs within a word, the expansion of
  the first parameter is joined with the beginning part of the original
  word, and the expansion of the last parameter is joined with the last
  part of the original word.
  When there are no positional parameters,
-.B \&\(dq$@\(dq
+.B \&\*"$@\*"
  and
  .B $@
  expand to nothing (i.e., they are removed).
@@ -1696,7 +1709,7 @@ dynamically loadable builtins specified by the
  command.
  .TP
  .B BASH_REMATCH
-An array variable whose members are assigned by the \fB=\(ti\fP binary
+An array variable whose members are assigned by the \fB=\*~\fP binary
  operator to the \fB[[\fP conditional command.
  The element with index 0 is the portion of the string
  matching the entire regular expression.
@@ -2187,7 +2200,7 @@ The current version is also a valid value.
  If this parameter is set when \fBbash\fP is executing a shell script,
  its value is interpreted as a filename containing commands to
  initialize the shell, as in
-.IR \(ti/.bashrc .
+.IR \*~/.bashrc .
  The value of
  .SM
  .B BASH_ENV
@@ -2227,7 +2240,7 @@ for destination directories specified by the
  .B cd
  command.
  A sample value is
-.Q .:\(ti:/usr .
+.Q .:\*~:/usr .
  .TP
  .B CHILD_MAX
  Set the number of exited child status values for the shell to remember.
@@ -2296,7 +2309,7 @@ A filename whose suffix matches one of the entries in
  .B FIGNORE
  is excluded from the list of matched filenames.
  A sample value is
-.Q .o:\(ti .
+.Q .o:\*~ .
  .TP
  .B FUNCNEST
  If set to a numeric value greater than 0, defines a maximum function
@@ -2377,7 +2390,7 @@ The name of the file in which command history is saved (see
  .SM
  .B HISTORY
  below).
-\fBBash\fP assigns a default value of \fI\(ti/.bash_history\fP.
+\fBBash\fP assigns a default value of \fI\*~/.bash_history\fP.
  If \fBHISTFILE\fP is unset or null,
  the command history is not saved when a shell exits.
  .TP
@@ -2498,7 +2511,7 @@ signifies the end of input to the shell.
  The filename for the
  .B readline
  startup file, overriding the default of
-.FN \(ti/.inputrc
+.FN \*~/.inputrc
  (see
  .SM
  .B READLINE
@@ -2580,7 +2593,7 @@ Example:
  .RS
  .PP
  .EX
-\fBMAILPATH\fP=\(aq/var/mail/bfox?\(dqYou have mail\(dq:\(ti/shell\-mail?\(dq$_ has mail!\(dq\(aq
+\fBMAILPATH\fP=\*'/var/mail/bfox?\*"You have mail\*":\*~/shell\-mail?\*"$_ has mail!\*"\*'
  .EE
  .PP
  .B Bash
@@ -2744,7 +2757,7 @@ The value of \fIp\fP determines whether or not the fraction is
  included.
  .IP
  If this variable is not set, \fBbash\fP acts as if it had the
-value \fB$\(aq\enreal\et%3lR\enuser\et%3lU\ensys\et%3lS\(aq\fP.
+value \fB$\*'\enreal\et%3lR\enuser\et%3lU\ensys\et%3lS\*'\fP.
  If the value is null, \fBbash\fP does not display any timing information.
  A trailing newline is added when the format string is displayed.
  .PD 0
@@ -2812,7 +2825,7 @@ character, which is used as shorthand for re-running the previous
  command entered, substituting one string for another in the command,
  when it appears as the first character on the line.
  The default is
-.Q \fB\(ha\fP .
+.Q \fB\*^\fP .
  The optional third character is the character which indicates that
  the remainder of the line is a comment when found as the first character
  of a word, normally
@@ -3037,9 +3050,9 @@ Only brace expansion, word splitting, and pathname expansion
  can increase the number of words of the expansion; other expansions
  expand a single word to a single word.
  The only exceptions to this are the expansions of
-.B \&\(dq$@\(dq
+.B \&\*"$@\*"
  and
-.B \&\(dq${\fIname\fP[@]}\(dq\c \" keep leading \& for AT&T troff
+.B \&\*"${\fIname\fP[@]}\*"\c \" keep leading \& for AT&T troff
  .BR \& , \" .BR + \& + \*" doesn't work with AT&T troff
  and, in most cases, \fB$*\fP and \fB${\fP\fIname\fP\fB[*]}\fP
  as explained above (see
@@ -3146,7 +3159,7 @@ command (see
  below).
  .SS Tilde Expansion
  If a word begins with an unquoted tilde character (\c
-.Q \fB\(ti\fP ),
+.Q \fB\*~\fP ),
  all of
  the characters preceding the first unquoted slash (or all characters,
  if there is no unquoted slash) are considered a \fItilde-prefix\fP.
@@ -3166,13 +3179,13 @@ Otherwise, the tilde-prefix is replaced with the home directory
  associated with the specified login name.
  .PP
  If the tilde-prefix is a
-.Q \(ti+ ,
+.Q \*~+ ,
  the value of the shell variable
  .SM
  .B PWD
  replaces the tilde-prefix.
  If the tilde-prefix is a
-.Q \(ti\- ,
+.Q \*~\- ,
  the value of the shell variable
  .SM
  .BR OLDPWD ,
@@ -3580,10 +3593,10 @@ or
  the substitution operation is applied to each member of the
  array in turn, and the expansion is the resultant list.
  .TP
-${\fIparameter\fP\fB\(ha\fP\fIpattern\fP}
+${\fIparameter\fP\fB\*^\fP\fIpattern\fP}
  .PD 0
  .TP
-${\fIparameter\fP\fB\(ha\(ha\fP\fIpattern\fP}
+${\fIparameter\fP\fB\*^\*^\fP\fIpattern\fP}
  .TP
  ${\fIparameter\fP\fB,\fP\fIpattern\fP}
  .TP
@@ -3596,11 +3609,11 @@ pathname expansion.
  Each character in the expanded value of \fIparameter\fP is tested against
  \fIpattern\fP, and, if it matches the pattern, its case is converted.
  The pattern should not attempt to match more than one character.
-The \fB\(ha\fP operator converts lowercase letters matching \fIpattern\fP
+The \fB\*^\fP operator converts lowercase letters matching \fIpattern\fP
  to uppercase; the \fB,\fP operator converts matching uppercase letters
  to lowercase.
-The \fB\(ha\(ha\fP and \fB,,\fP expansions convert each matched character in the
-expanded value; the \fB\(ha\fP and \fB,\fP expansions match and convert only
+The \fB\*^\*^\fP and \fB,,\fP expansions convert each matched character in the
+expanded value; the \fB\*^\fP and \fB,\fP expansions match and convert only
  the first character in the expanded value.
  If \fIpattern\fP is omitted, it is treated like a \fB?\fP, which matches
  every character.
@@ -3648,7 +3661,7 @@ format that can be reused as input.
  .TP
  .B E
  The expansion is a string that is the value of \fIparameter\fP with backslash
-escape sequences expanded as with the \fB$\(aq\fP.\|.\|.\%\fB\(aq\fP
+escape sequences expanded as with the \fB$\*'\fP.\|.\|.\%\fB\*'\fP
  quoting mechanism.
  .TP
  .B P
@@ -3900,8 +3913,8 @@ is unset, word splitting behaves as if it contained the default value
  of
  .BR <space><tab><newline> .
  .PP
-Explicit null arguments (\^\f3\(dq\^\(dq\fP or
-\^\f3\(aq\^\(aq\fP\^) are retained
+Explicit null arguments (\^\f3\*"\^\*"\fP or
+\^\f3\*'\^\*'\fP\^) are retained
  and passed to commands as empty strings.
  Unquoted implicit null arguments, resulting from the expansion of
  parameters that have no values, are removed.
@@ -3911,7 +3924,7 @@ and passed to a command as an empty string.
  When a quoted null argument appears as part of a word whose expansion is
  non-null, the null argument is removed.
  That is, the word
-.Q "\-d\(aq\^\(aq"
+.Q "\-d\*'\^\*'"
  becomes
  .Q \-d
  after word splitting and null argument removal.
@@ -4095,7 +4108,7 @@ is matched.  If the first character following the
  is a
  .B !
  or a
-.B \(ha
+.B \*^
  then any character not enclosed is matched.
  The sorting order of characters in range expressions,
  and the characters included in the range,
@@ -4225,8 +4238,8 @@ strings instead of a single long string, may be faster.
  After the preceding expansions, all unquoted occurrences of the
  characters
  .BR \e ,
-.BR \(aq ,
-and \^\f3\(dq\fP\^ that did not result from one of the above
+.BR \*' ,
+and \^\f3\*"\fP\^ that did not result from one of the above
  expansions are removed.
  .SH REDIRECTION
  Before a command is executed, its input and output
@@ -4873,7 +4886,7 @@ unary minus and plus
  .B ++\fIid\fP \-\-\fIid\fP
  variable pre-increment and pre-decrement
  .TP
-.B ! \(ti
+.B ! \*~
  logical and bitwise negation
  .TP
  .B **
@@ -4897,7 +4910,7 @@ equality and inequality
  .B &
  bitwise AND
  .TP
-.B \(ha
+.B \*^
  bitwise exclusive OR
  .TP
  .B |
@@ -4912,7 +4925,7 @@ logical OR
  .B \fIexpr\fP?\fIexpr\fP:\fIexpr\fP
  conditional operator
  .TP
-.B "= *= /= %= += \-= <<= >>= &= \(ha= |="
+.B "= *= /= %= += \-= <<= >>= &= \*^= |="
  assignment
  .TP
  .B \fIexpr1\fP , \fIexpr2\fP
@@ -5525,10 +5538,10 @@ command to complete, the shell receives keyboard-generated signals
  such as
  .SM
  .B SIGINT
-(usually generated by \fB\(haC\fP) that users commonly intend to send
+(usually generated by \fB\*^C\fP) that users commonly intend to send
  to that command.
  This happens because the shell and the command are in the
-same process group as the terminal, and \fB\(haC\fP sends
+same process group as the terminal, and \fB\*^C\fP sends
  .SM
  .B SIGINT
  to all processes in that process group.
@@ -5641,14 +5654,14 @@ contains facilities to use it.
  Typing the
  .I suspend
  character (typically
-.BR \(haZ ,
+.BR \*^Z ,
  Control-Z) while a process is running
  causes that process to be stopped and returns control to
  .BR bash .
  Typing the
  .I "delayed suspend"
  character (typically
-.BR \(haY ,
+.BR \*^Y ,
  Control-Y) causes the process to be stopped when it
  attempts to read input from the terminal, and control to
  be returned to
@@ -5660,7 +5673,7 @@ command to continue it in the background, the
  command to continue it in the foreground, or
  the
  .B kill
-command to kill it.  A \fB\(haZ\fP takes effect immediately,
+command to kill it.  A \fB\*^Z\fP takes effect immediately,
  and has the additional side effect of causing pending output
  and typeahead to be discarded.
  .PP
@@ -5980,7 +5993,7 @@ The name of this file is taken from the value of the
  .SM
  .B INPUTRC
  variable.  If that variable is unset, the default is
-.IR \(ti/.inputrc .
+.IR \*~/.inputrc .
  If that file  does not exist or cannot be read, the ultimate default is
  .IR /etc/inputrc .
  When a program which uses the readline library starts up, the
@@ -6047,7 +6060,7 @@ is the name of a key spelled out in English.  For example:
  .nf
  Control-u: universal\-argument
  Meta-Rubout: backward-kill-word
-Control-o: \(dq> output\(dq
+Control-o: \*"> output\*"
  .fi
  .EE
  .RE
@@ -6067,7 +6080,7 @@ expressed on the right hand side (that is, to insert the text
  into the line).
  .PP
  In the second form,
-\fB\(dqkeyseq\(dq\fP:\^\fIfunction\-name\fP or \fImacro\fP,
+\fB\*"keyseq\*"\fP:\^\fIfunction\-name\fP or \fImacro\fP,
  .B keyseq
  differs from
  .B keyname
@@ -6080,9 +6093,9 @@ are not recognized.
  .RS
  .EX
  .nf
-\(dq\eC\-u\(dq: universal\-argument
-\(dq\eC\-x\eC\-r\(dq: re\-read\-init\-file
-\(dq\ee[11\(ti\(dq: \(dqFunction Key 1\(dq
+\*"\eC\-u\*": universal\-argument
+\*"\eC\-x\eC\-r\*": re\-read\-init\-file
+\*"\ee[11\*~\*": \*"Function Key 1\*"
  .fi
  .EE
  .RE
@@ -6095,7 +6108,7 @@ is again bound to the function
  is bound to the function
  .BR re\-read\-init\-file ,
  and
-.I "ESC [ 1 1 \(ti"
+.I "ESC [ 1 1 \*~"
  is bound to insert the text
  .Q "Function Key 1" .
  .PP
@@ -6115,11 +6128,11 @@ an escape character
  .B \e\e
  backslash
  .TP
-.B \e\(dq
-literal \(dq
+.B \e\*"
+literal \*"
  .TP
-.B \e\(aq
-literal \(aq
+.B \e\*'
+literal \*'
  .RE
  .PD
  .PP
@@ -6167,7 +6180,7 @@ be used to indicate a macro definition.
  Unquoted text is assumed to be a function name.
  In the macro body, the backslash escapes described above are expanded.
  Backslash will quote any other character in the macro text,
-including \(dq and \(aq.
+including \*" and \*'.
  .PP
  .B Bash
  allows the current readline key bindings to be displayed or modified
@@ -6650,7 +6663,7 @@ key sequence that quotes the current or previous word in \fBbash\fP:
  .nf
  \fB$if\fP Bash
  # Quote the current or previous word
-\(dq\eC-xq\(dq: \(dq\eeb\e\(dq\eef\e\(dq\(dq
+\*"\eC-xq\*": \*"\eeb\e\*"\eef\e\*"\*"
  \fB$endif\fP
  .fi
  .EE
@@ -6907,7 +6920,7 @@ history expansion had been specified.
  .B shell\-expand\-line (M\-C\-e)
  Expand the line by performing shell word expansions.
  This performs alias and history expansion,
-\fB$\fP\(aq\fIstring\fP\(aq and \fB$\fP\(dq\fIstring\fP\(dq quoting,
+\fB$\fP\*'\fIstring\fP\*' and \fB$\fP\*"\fIstring\fP\*" quoting,
  tilde expansion, parameter and variable expansion, arithmetic expansion,
  command and process substitution,
  word splitting, and quote removal.
@@ -6917,7 +6930,7 @@ See
  .B HISTORY EXPANSION
  below for a description of history expansion.
  .TP
-.B history\-expand\-line (M\-\(ha)
+.B history\-expand\-line (M\-\*^)
  Perform history expansion on the current line.
  See
  .SM
@@ -7126,7 +7139,7 @@ Attempt to perform completion on the text before point.
  .B Bash
  attempts completion treating the text as a variable (if the
  text begins with \fB$\fP), username (if the text begins with
-\fB\(ti\fP), hostname (if the text begins with \fB@\fP), or
+\fB\*~\fP), hostname (if the text begins with \fB@\fP), or
  command (including aliases and functions) in turn.  If none
  of these produces a match, filename completion is attempted.
  .TP
@@ -7171,11 +7184,11 @@ Attempt filename completion on the text before point.
  List the possible completions of the text before point,
  treating it as a filename.
  .TP
-.B complete\-username (M\-\(ti)
+.B complete\-username (M\-\*~)
  Attempt completion on the text before point, treating
  it as a username.
  .TP
-.B possible\-username\-completions (C\-x \(ti)
+.B possible\-username\-completions (C\-x \*~)
  List the possible completions of the text before point,
  treating it as a username.
  .TP
@@ -7547,7 +7560,7 @@ completion function would load completions dynamically:
  .nf
  _completion_loader()
  {
-  . \(dq/etc/bash_completion.d/$1.sh\(dq \c
+  . \*"/etc/bash_completion.d/$1.sh\*" \c
  .if \n(LL<80n \{\
  \e
  .br
@@ -7598,7 +7611,7 @@ On startup, the history is initialized from the file named by
  the variable
  .SM
  .B HISTFILE
-(default \fI\(ti/.bash_history\fP).
+(default \fI\*~/.bash_history\fP).
  The file named by the value of
  .SM
  .B HISTFILE
@@ -7847,13 +7860,13 @@ is followed immediately by a newline.
  If \fIstring\fP is missing, the string from the most recent search is used;
  it is an error if there is no previous search string.
  .TP
-.B \d\s+2\(ha\s-2\u\fIstring1\fP\d\s+2\(ha\s-2\u\fIstring2\fP\d\s+2\(ha\s-2\u
+.B \d\s+2\*^\s-2\u\fIstring1\fP\d\s+2\*^\s-2\u\fIstring2\fP\d\s+2\*^\s-2\u
  Quick substitution.  Repeat the previous command, replacing
  .I string1
  with
  .IR string2 .
  Equivalent to
-.Q !!:s\d\s+2\(ha\s-2\u\fIstring1\fP\d\s+2\(ha\s-2\u\fIstring2\fP\d\s+2\(ha\s-2\u
+.Q !!:s\d\s+2\*^\s-2\u\fIstring1\fP\d\s+2\*^\s-2\u\fIstring2\fP\d\s+2\*^\s-2\u
  (see \fBModifiers\fP below).
  .TP
  .B !#
@@ -7865,7 +7878,7 @@ A
  .B :
  separates the event specification from the word designator.
  It may be omitted if the word designator begins with a
-.BR \(ha ,
+.BR \*^ ,
  .BR $ ,
  .BR * ,
  .BR \- ,
@@ -7884,7 +7897,7 @@ word.
  .I n
  The \fIn\fRth word.
  .TP
-.B \(ha
+.B \*^
  The first argument.  That is, word 1.
  .TP
  .B $
@@ -8150,7 +8163,7 @@ Each non-option argument is a command as it would appear in a
  initialization file such as
  .IR .inputrc ,
  but each binding or command must be passed as a separate argument;
-e.g., \(aq\(dq\eC\-x\eC\-r\(dq: re\-read\-init\-file\(aq.
+e.g., \*'\*"\eC\-x\eC\-r\*": re\-read\-init\-file\*'.
  In the following descriptions, output available to be re-read is formatted
  as commands that would appear in a
  .B readline
@@ -9250,7 +9263,7 @@ In the second form, \fIcommand\fP is re-executed after each instance
  of \fIpat\fP is replaced by \fIrep\fP.
  \fICommand\fP is interpreted the same as \fIfirst\fP above.
  A useful alias to use with this is
-.Q "r=\(dqfc \-s\(dq" ,
+.Q "r=\*"fc \-s\*"" ,
  so that typing
  .Q "r cc"
  runs the last command beginning with
@@ -9885,7 +9898,7 @@ in the same way as \fBecho \-e\fP.
  .B %q
  causes \fBprintf\fP to output the corresponding
  \fIargument\fP in a format that can be reused as shell input.
-\fB%q\fP and \fB%Q\fP use the \fB$\(aq\(aq\fP quoting style if any characters
+\fB%q\fP and \fB%Q\fP use the \fB$\*'\*'\fP quoting style if any characters
  in the argument string require it, and backslash quoting otherwise.
  If the format string uses the \fIprintf\fP alternate form, these two
  formats quote the argument string using single quotes.
@@ -10939,7 +10952,7 @@ under
  \fBPathname Expansion\fP are enabled.
  .TP 8
  .B extquote
-If set, \fB$\fP\(aq\fIstring\fP\(aq and \fB$\fP\(dq\fIstring\fP\(dq quoting is
+If set, \fB$\fP\*'\fIstring\fP\*' and \fB$\fP\*"\fIstring\fP\*" quoting is
  performed within \fB${\fP\fIparameter\fP\fB}\fP expansions
  enclosed in double quotes.  This option is enabled by default.
  .TP 8
@@ -11121,7 +11134,7 @@ or when filtering possible completions as part of programmable completion.
  If set,
  .B bash
  encloses the translated results of
-.BR $\(dq .\|.\|.\& \(dq
+.BR $\*" .\|.\|.\& \*"
  quoting in single quotes instead of double quotes.
  If the string is not translated, this has no effect.
  .TP 8
@@ -11913,7 +11926,7 @@ and it is required for bash-5.1 and later versions.
  .PD 0
  .RS
  .IP \(bu
-quoting the rhs of the \fB[[\fP command's regexp matching operator (=\(ti)
+quoting the rhs of the \fB[[\fP command's regexp matching operator (=\*~)
  has no special effect
  .RE
  .PD
@@ -11979,7 +11992,7 @@ are not special within double-quoted word expansions
  .IP \(bu
  the shell does not print a warning message if an attempt is made to
  use a quoted compound assignment as an argument to declare
-(e.g., declare \-a foo=\(aq(1 2)\(aq). Later versions warn that this usage is
+(e.g., declare \-a foo=\*'(1 2)\*'). Later versions warn that this usage is
  deprecated
  .IP \(bu
  word expansion errors are considered non-fatal errors that cause the
@@ -12200,7 +12213,7 @@ script.
  \fIPortable Operating System Interface (POSIX) Part 2: Shell and Utilities\fP, IEEE \(em
  http://pubs.opengroup.org/onlinepubs/9699919799/
  .TP
-http://tiswww.case.edu/\(tichet/bash/POSIX \(em a description of posix mode
+http://tiswww.case.edu/\*~chet/bash/POSIX \(em a description of posix mode
  .TP
  \fIsh\fP(1), \fIksh\fP(1), \fIcsh\fP(1)
  .TP
@@ -12217,20 +12230,20 @@ The \fBbash\fP executable
  .FN /etc/profile
  The systemwide initialization file, executed for login shells
  .TP
-.FN \(ti/.bash_profile
+.FN \*~/.bash_profile
  The personal initialization file, executed for login shells
  .TP
-.FN \(ti/.bashrc
+.FN \*~/.bashrc
  The individual per-interactive-shell startup file
  .TP
-.FN \(ti/.bash_logout
+.FN \*~/.bash_logout
  The individual login shell cleanup file, executed when a login shell exits
  .TP
-.FN \(ti/.bash_history
+.FN \*~/.bash_history
  The default value of \fBHISTFILE\fP, the file in which bash saves the
  command history
  .TP
-.FN \(ti/.inputrc
+.FN \*~/.inputrc
  Individual \fIreadline\fP initialization file
  .PD
  .SH AUTHORS
diff --git a/doc/bash.html b/doc/bash.html

index 85d8d33463590e19195138f28f31e6aa7a4f0cae..e6b2074dba01de8870b13cd0024608bce715d0db 100644 (file)
--- a/doc/bash.html
+++ b/doc/bash.html
@@ -37,6 +37,15 @@
  
  
  
+
+
+
+
+
+
+
+
+
  
  
  
@@ -247,7 +256,7 @@ Execute commands from
  <I>file</I>
  
  instead of the standard personal initialization file
-<I>ti/.bashrc</I>
+<A HREF="file:~/.bashrc"><I>~/.bashrc</I></A>
  
  if the shell is interactive (see
  <FONT SIZE=-1><B>INVOCATION</B>
@@ -273,12 +282,12 @@ Do not read either the system-wide startup file
  <A HREF="file:/etc/profile"><I>/etc/profile</I></A>
  
  or any of the personal initialization files
-<I>ti/.bash_profile</I>,
+<A HREF="file:~/.bash_profile"><I>~/.bash_profile</I></A>,
  
-<I>ti/.bash_login</I>,
+<A HREF="file:~/.bash_login"><I>~/.bash_login</I></A>,
  
  or
-<I>ti/.profile</I>.
+<A HREF="file:~/.profile"><I>~/.profile</I></A>.
  
  By default,
  <B>bash</B>
@@ -292,7 +301,7 @@ below).
  
  <DD>
  Do not read and execute the personal initialization file
-<I>ti/.bashrc</I>
+<A HREF="file:~/.bashrc"><I>~/.bashrc</I></A>
  
  if the shell is interactive.
  This option is on by default if the shell is invoked as
@@ -428,8 +437,8 @@ is invoked as an interactive login shell, or as a non-interactive shell
  with the <B>--login</B> option, it first reads and
  executes commands from the file <A HREF="file:/etc/profile"><I>/etc/profile</I></A>, if that
  file exists.
-After reading that file, it looks for <I>ti/.bash_profile</I>,
-<I>ti/.bash_login</I>, and <I>ti/.profile</I>, in that order, and reads
+After reading that file, it looks for <A HREF="file:~/.bash_profile"><I>~/.bash_profile</I></A>,
+<A HREF="file:~/.bash_login"><I>~/.bash_login</I></A>, and <A HREF="file:~/.profile"><I>~/.profile</I></A>, in that order, and reads
  and executes commands from the first one that exists and is readable.
  The
  <B>--noprofile</B>
@@ -441,14 +450,14 @@ When an interactive login shell exits,
  or a non-interactive login shell executes the <B>exit</B> builtin command,
  <B>bash</B>
  
-reads and executes commands from the file <I>ti/.bash_logout</I>, if it
+reads and executes commands from the file <A HREF="file:~/.bash_logout"><I>~/.bash_logout</I></A>, if it
  exists.
  <P>
  
  When an interactive shell that is not a login shell is started,
  <B>bash</B>
  
-reads and executes commands from <I>ti/.bashrc</I>, if that file exists.
+reads and executes commands from <A HREF="file:~/.bashrc"><I>~/.bashrc</I></A>, if that file exists.
  This may be inhibited by using the
  <B>--norc</B>
  
@@ -456,7 +465,7 @@ option.
  The <B>--rcfile</B> <I>file</I> option will force
  <B>bash</B>
  
-to read and execute commands from <I>file</I> instead of <I>ti/.bashrc</I>.
+to read and execute commands from <I>file</I> instead of <A HREF="file:~/.bashrc"><I>~/.bashrc</I></A>.
  <P>
  
  When
@@ -476,7 +485,11 @@ behaves as if the following command were executed:
  
  <DL COMPACT><DT><DD>
  
-if [ -n dq$BASH_ENVdq ]; then . dq$BASH_ENVdq; fi
+if [ -n &quot;
+$BASH_ENV&quot;
+ ]; then . &quot;
+$BASH_ENV&quot;
+; fi
  
  </DL>
  
@@ -506,7 +519,7 @@ read and execute commands from
  <A HREF="file:/etc/profile"><I>/etc/profile</I></A>
  
  and
-<I>ti/.profile</I>,
+<A HREF="file:~/.profile"><I>~/.profile</I></A>,
  
  in that order.
  The
@@ -576,7 +589,7 @@ If
  <B>bash</B>
  
  determines it is being run non-interactively in this fashion,
-it reads and executes commands from <I>ti/.bashrc</I>,
+it reads and executes commands from <A HREF="file:~/.bashrc"><I>~/.bashrc</I></A>,
  if that file exists and is readable.
  It will not do this if invoked as <B>sh</B>.
  The
@@ -985,7 +998,7 @@ The return value is 0 if the string matches (<B>==</B>) or does not match
  Any part of the pattern may be quoted to force the quoted portion
  to be matched as a string.
  <DT><DD>
-An additional binary operator, <B>=ti</B>, is available, with the same
+An additional binary operator, <B>=~</B>, is available, with the same
  precedence as <B>==</B> and <B>!=</B>.
  When it is used, the string to the right of the operator is considered
  a POSIX extended regular expression and matched accordingly
@@ -1012,7 +1025,7 @@ since normal quoting and pattern characters lose their meanings
  between brackets.
  <DT><DD>
  The pattern will match if it matches any part of the string.
-Anchor the pattern using the <B>ha</B> and <B>$</B> regular expression
+Anchor the pattern using the <B>^</B> and <B>$</B> regular expression
  operators to force it to match the entire string.
  The array variable
  <FONT SIZE=-1><B>BASH_REMATCH</B>
@@ -1448,7 +1461,8 @@ characters:
  
  <B>`</B>,
  
-<B>dq</B>,
+<B>&quot;
+</B>,
  <B>\</B>,
  
  or
@@ -1480,7 +1494,7 @@ quotes (see
  below).
  <P>
  
-Character sequences of the form <B>$</B>aq<I>string</I>aq are treated
+Character sequences of the form <B>$</B>'<I>string</I>' are treated
  as a special variant of single quotes.
  The sequence expands to <I>string</I>, with backslash-escaped characters
  in <I>string</I> replaced as specified by the ANSI C standard.
@@ -1527,11 +1541,11 @@ vertical tab
  
  <DD>
  backslash
-<DT><B>\aq</B>
+<DT><B>\'</B>
  
  <DD>
  single quote
-<DT><B>\dq</B>
+<DT><B>\</B>
  
  <DD>
  double quote
@@ -1572,7 +1586,9 @@ The expanded result is single-quoted, as if the dollar sign had
  not been present.
  <P>
  
-A double-quoted string preceded by a dollar sign (<B>$</B>dq<I>string</I>dq)
+A double-quoted string preceded by a dollar sign (<B>$</B>&quot;
+<I>string</I>&quot;
+)
  will cause the string to be translated according to the current locale.
  The <I>gettext</I> infrastructure performs the lookup and
  translation, using the <B>LC_MESSAGES</B>, <B>TEXTDOMAINDIR</B>,
@@ -1803,10 +1819,10 @@ with the value of each parameter separated by the first character of the
  </FONT>
  special variable.
  That is,
-<B>dq$*dq</B>
+<B>$*</B>
  
  is equivalent to
-<B>dq$1</B><I>c</I>$2<I>c</I>...dq,
+<B>$1</B><I>c</I>$2<I>c</I>...,
  
  where
  <I>c</I>
@@ -1838,17 +1854,17 @@ with each positional parameter separated by a space.
  When the expansion occurs within double quotes,
  each parameter expands to a separate word.
  That is,
-<B>dq$@dq</B>
+<B>$@</B>
  
  is equivalent to
-<B>dq$1dq&nbsp;dq$2dq&nbsp;...</B>
+<B>$1&nbsp;$2&nbsp;...</B>
  
  If the double-quoted expansion occurs within a word, the expansion of
  the first parameter is joined with the beginning part of the original
  word, and the expansion of the last parameter is joined with the last
  part of the original word.
  When there are no positional parameters,
-<B>dq$@dq</B>
+<B>$@</B>
  
  and
  <B>$@</B>
@@ -2143,7 +2159,7 @@ command.
  <DT><B>BASH_REMATCH</B>
  
  <DD>
-An array variable whose members are assigned by the <B>=ti</B> binary
+An array variable whose members are assigned by the <B>=~</B> binary
  operator to the <B>[[</B> conditional command.
  The element with index 0 is the portion of the string
  matching the entire regular expression.
@@ -2759,7 +2775,7 @@ The current version is also a valid value.
  If this parameter is set when <B>bash</B> is executing a shell script,
  its value is interpreted as a filename containing commands to
  initialize the shell, as in
-<I>ti/.bashrc</I>.
+<A HREF="file:~/.bashrc"><I>~/.bashrc</I></A>.
  
  The value of
  <FONT SIZE=-1><B>BASH_ENV</B>
@@ -2994,7 +3010,7 @@ The name of the file in which command history is saved (see
  
  </FONT>
  below).
-<B>Bash</B> assigns a default value of <I>ti/.bash_history</I>.
+<B>Bash</B> assigns a default value of <A HREF="file:~/.bash_history"><I>~/.bash_history</I></A>.
  If <B>HISTFILE</B> is unset or null,
  the command history is not saved when a shell exits.
  <DT><B>HISTFILESIZE</B>
@@ -3143,7 +3159,7 @@ The filename for the
  
  startup file, overriding the default of
  
-<I>ti/.inputrc</I>
+<A HREF="file:~/.inputrc"><I>~/.inputrc</I></A>
  
  (see
  <FONT SIZE=-1><B>READLINE</B>
@@ -3246,7 +3262,11 @@ Example:
  <P>
  
  
-<B>MAILPATH</B>=aq/var/mail/bfox?dqYou have maildq:ti/shell-mail?dq$_ has mail!dqaq
+<B>MAILPATH</B>='/var/mail/bfox?&quot;
+You have mail&quot;
+:~/shell-mail?&quot;
+$_ has mail!&quot;
+'
  
  <P>
  
@@ -3454,7 +3474,7 @@ The value of <I>p</I> determines whether or not the fraction is
  included.
  <DT><DD>
  If this variable is not set, <B>bash</B> acts as if it had the
-value <B>$aq\nreal\t%3lR\nuser\t%3lU\nsys\t%3lSaq</B>.
+value <B>$'\nreal\t%3lR\nuser\t%3lU\nsys\t%3lS'</B>.
  If the value is null, <B>bash</B> does not display any timing information.
  A trailing newline is added when the format string is displayed.
  
@@ -3820,10 +3840,10 @@ Only brace expansion, word splitting, and pathname expansion
  can increase the number of words of the expansion; other expansions
  expand a single word to a single word.
  The only exceptions to this are the expansions of
-<B>dq$@dq</B>
+<B>$@</B>
  
  and
-<B>dq${</B><I>name</I>[@]}dq <B></B>,
+<B>${</B><I>name</I>[@]} <B></B>,
  
  
  
@@ -4451,9 +4471,9 @@ or
  
  the substitution operation is applied to each member of the
  array in turn, and the expansion is the resultant list.
-<DT>${<I>parameter</I><B>ha</B><I>pattern</I>}<DD>
+<DT>${<I>parameter</I><B>^</B><I>pattern</I>}<DD>
  
-<DT>${<I>parameter</I><B>haha</B><I>pattern</I>}<DD>
+<DT>${<I>parameter</I><B>^^</B><I>pattern</I>}<DD>
  <DT>${<I>parameter</I><B>,</B><I>pattern</I>}<DD>
  <DT>${<I>parameter</I><B>,,</B><I>pattern</I>}<DD>
  
@@ -4464,11 +4484,11 @@ pathname expansion.
  Each character in the expanded value of <I>parameter</I> is tested against
  <I>pattern</I>, and, if it matches the pattern, its case is converted.
  The pattern should not attempt to match more than one character.
-The <B>ha</B> operator converts lowercase letters matching <I>pattern</I>
+The <B>^</B> operator converts lowercase letters matching <I>pattern</I>
  to uppercase; the <B>,</B> operator converts matching uppercase letters
  to lowercase.
-The <B>haha</B> and <B>,,</B> expansions convert each matched character in the
-expanded value; the <B>ha</B> and <B>,</B> expansions match and convert only
+The <B>^^</B> and <B>,,</B> expansions convert each matched character in the
+expanded value; the <B>^</B> and <B>,</B> expansions match and convert only
  the first character in the expanded value.
  If <I>pattern</I> is omitted, it is treated like a <B>?</B>, which matches
  every character.
@@ -4529,7 +4549,7 @@ format that can be reused as input.
  
  <DD>
  The expansion is a string that is the value of <I>parameter</I> with backslash
-escape sequences expanded as with the <B>$aq</B>...<B>aq</B>
+escape sequences expanded as with the <B>$'</B>...<B>'</B>
  quoting mechanism.
  <DT><B>P</B>
  
@@ -4857,8 +4877,10 @@ of
  
  <P>
  
-Explicit null arguments (<B>dqdq</B> or
-<B>aqaq</B>) are retained
+Explicit null arguments (<B>&quot;
+&quot;
+</B> or
+<B>''</B>) are retained
  and passed to commands as empty strings.
  Unquoted implicit null arguments, resulting from the expansion of
  parameters that have no values, are removed.
@@ -5101,7 +5123,7 @@ is a
  <B>!</B>
  
  or a
-<B>ha</B>
+<B>^</B>
  
  then any character not enclosed is matched.
  The sorting order of characters in range expressions,
@@ -5253,9 +5275,10 @@ After the preceding expansions, all unquoted occurrences of the
  characters
  <B>\</B>,
  
-<B>aq</B>,
+<B>'</B>,
  
-and <B>dq</B> that did not result from one of the above
+and <B>&quot;
+</B> that did not result from one of the above
  expansions are removed.
  <A NAME="lbBI">&nbsp;</A>
  <H3>REDIRECTION</H3>
@@ -6118,7 +6141,7 @@ unary minus and plus
  
  <DD>
  variable pre-increment and pre-decrement
-<DT><B>! ti</B>
+<DT><B>! ~</B>
  
  <DD>
  logical and bitwise negation
@@ -6150,7 +6173,7 @@ equality and inequality
  
  <DD>
  bitwise AND
-<DT><B>ha</B>
+<DT><B>^</B>
  
  <DD>
  bitwise exclusive OR
@@ -6170,7 +6193,7 @@ logical OR
  
  <DD>
  conditional operator
-<DT><B>= *= /= %= += -= &lt;&lt;= &gt;&gt;= &amp;= ha= |=</B>
+<DT><B>= *= /= %= += -= &lt;&lt;= &gt;&gt;= &amp;= ^= |=</B>
  
  <DD>
  assignment
@@ -6932,10 +6955,10 @@ such as
  <FONT SIZE=-1><B>SIGINT</B>
  
  </FONT>
-(usually generated by <B>haC</B>) that users commonly intend to send
+(usually generated by <B>^C</B>) that users commonly intend to send
  to that command.
  This happens because the shell and the command are in the
-same process group as the terminal, and <B>haC</B> sends
+same process group as the terminal, and <B>^C</B> sends
  <FONT SIZE=-1><B>SIGINT</B>
  
  </FONT>
@@ -7085,7 +7108,7 @@ Typing the
  <I>suspend</I>
  
  character (typically
-<B>haZ</B>,
+<B>^Z</B>,
  
  Control-Z) while a process is running
  causes that process to be stopped and returns control to
@@ -7095,7 +7118,7 @@ Typing the
  <I>delayed suspend</I>
  
  character (typically
-<B>haY</B>,
+<B>^Y</B>,
  
  Control-Y) causes the process to be stopped when it
  attempts to read input from the terminal, and control to
@@ -7112,7 +7135,7 @@ command to continue it in the foreground, or
  the
  <B>kill</B>
  
-command to kill it.  A <B>haZ</B> takes effect immediately,
+command to kill it.  A <B>^Z</B> takes effect immediately,
  and has the additional side effect of causing pending output
  and typeahead to be discarded.
  <P>
@@ -7535,7 +7558,7 @@ The name of this file is taken from the value of the
  
  </FONT>
  variable.  If that variable is unset, the default is
-<I>ti/.inputrc</I>.
+<A HREF="file:~/.inputrc"><I>~/.inputrc</I></A>.
  
  If that file  does not exist or cannot be read, the ultimate default is
  <A HREF="file:/etc/inputrc"><I>/etc/inputrc</I></A>.
@@ -7631,7 +7654,9 @@ is the name of a key spelled out in English.  For example:
  <PRE>
  Control-u: universal-argument
  Meta-Rubout: backward-kill-word
-Control-o: dq&gt; outputdq
+Control-o: &quot;
+&gt; output&quot;
+
  </PRE>
  
  
@@ -7660,7 +7685,9 @@ into the line).
  <P>
  
  In the second form,
-<B>dqkeyseqdq</B>:<I>function-name</I> or <I>macro</I>,
+<B>&quot;
+keyseq&quot;
+</B>:<I>function-name</I> or <I>macro</I>,
  <B>keyseq</B>
  
  differs from
@@ -7676,9 +7703,17 @@ are not recognized.
  <DL COMPACT><DT><DD>
  
  <PRE>
-dq\C-udq: universal-argument
-dq\C-x\C-rdq: re-read-init-file
-dq\e[11tidq: dqFunction Key 1dq
+&quot;
+\C-u&quot;
+: universal-argument
+&quot;
+\C-x\C-r&quot;
+: re-read-init-file
+&quot;
+\e[11~&quot;
+: &quot;
+Function Key 1&quot;
+
  </PRE>
  
  
@@ -7698,7 +7733,7 @@ is bound to the function
  <B>re-read-init-file</B>,
  
  and
-<I>ESC [ 1 1 ti</I>
+<I>ESC [ 1 1 ~</I>
  
  is bound to insert the text
  
@@ -7724,14 +7759,15 @@ an escape character
  
  <DD>
  backslash
-<DT><B>\dq</B>
+<DT><B>\</B>
  
  <DD>
-literal dq
-<DT><B>\aq</B>
+literal &quot;
+
+<DT><B>\'</B>
  
  <DD>
-literal aq
+literal '
  </DL></DL>
  
  
@@ -7794,7 +7830,8 @@ be used to indicate a macro definition.
  Unquoted text is assumed to be a function name.
  In the macro body, the backslash escapes described above are expanded.
  Backslash will quote any other character in the macro text,
-including dq and aq.
+including &quot;
+ and '.
  <P>
  
  <B>Bash</B>
@@ -8377,7 +8414,13 @@ key sequence that quotes the current or previous word in <B>bash</B>:
  <PRE>
  <B>$if</B> Bash
  # Quote the current or previous word
-dq\C-xqdq: dq\eb\dq\ef\dqdq
+&quot;
+\C-xq&quot;
+: &quot;
+\eb\&quot;
+\ef\&quot;
+&quot;
+
  <B>$endif</B>
  </PRE>
  
@@ -8695,7 +8738,9 @@ history expansion had been specified.
  <DD>
  Expand the line by performing shell word expansions.
  This performs alias and history expansion,
-<B>$</B>aq<I>string</I>aq and <B>$</B>dq<I>string</I>dq quoting,
+<B>$</B>'<I>string</I>' and <B>$</B>&quot;
+<I>string</I>&quot;
+ quoting,
  tilde expansion, parameter and variable expansion, arithmetic expansion,
  command and process substitution,
  word splitting, and quote removal.
@@ -8705,7 +8750,7 @@ See
  
  </FONT>
  below for a description of history expansion.
-<DT><B>history-expand-line (M-ha)</B>
+<DT><B>history-expand-line (M-^)</B>
  
  <DD>
  Perform history expansion on the current line.
@@ -8981,7 +9026,7 @@ Attempt to perform completion on the text before point.
  
  attempts completion treating the text as a variable (if the
  text begins with <B>$</B>), username (if the text begins with
-<B>ti</B>), hostname (if the text begins with <B>@</B>), or
+<B>~</B>), hostname (if the text begins with <B>@</B>), or
  command (including aliases and functions) in turn.  If none
  of these produces a match, filename completion is attempted.
  <DT><B>possible-completions (M-?)</B>
@@ -9032,12 +9077,12 @@ Attempt filename completion on the text before point.
  <DD>
  List the possible completions of the text before point,
  treating it as a filename.
-<DT><B>complete-username (M-ti)</B>
+<DT><B>complete-username (M-~)</B>
  
  <DD>
  Attempt completion on the text before point, treating
  it as a username.
-<DT><B>possible-username-completions (C-x ti)</B>
+<DT><B>possible-username-completions (C-x ~)</B>
  
  <DD>
  List the possible completions of the text before point,
@@ -9497,7 +9542,9 @@ completion function would load completions dynamically:
  <PRE>
  _completion_loader()
  {
-  . dq/etc/bash_completion.d/$1.shdq 
+  . &quot;
+/etc/bash_completion.d/$1.sh&quot;
+ 
  \
  <BR>
  
@@ -9561,7 +9608,7 @@ the variable
  <FONT SIZE=-1><B>HISTFILE</B>
  
  </FONT>
-(default <I>ti/.bash_history</I>).
+(default <A HREF="file:~/.bash_history"><I>~/.bash_history</I></A>).
  The file named by the value of
  <FONT SIZE=-1><B>HISTFILE</B>
  
@@ -9877,7 +9924,7 @@ The trailing <B>?</B> may be omitted if
  is followed immediately by a newline.
  If <I>string</I> is missing, the string from the most recent search is used;
  it is an error if there is no previous search string.
-<DT><B></B><FONT SIZE=+2><B>ha</B></FONT><B></B><I>string1</I><FONT SIZE=+2>ha</FONT><I>string2</I><FONT SIZE=+2>ha</FONT>
+<DT><B></B><FONT SIZE=+2><B>^</B></FONT><B></B><I>string1</I><FONT SIZE=+2>^</FONT><I>string2</I><FONT SIZE=+2>^</FONT>
  
  <DD>
  Quick substitution.  Repeat the previous command, replacing
@@ -9904,7 +9951,7 @@ A
  
  separates the event specification from the word designator.
  It may be omitted if the word designator begins with a
-<B>ha</B>,
+<B>^</B>,
  
  <B>$</B>,
  
@@ -9931,7 +9978,7 @@ word.
  
  <DD>
  The <I>n</I>th word.
-<DT><B>ha</B>
+<DT><B>^</B>
  
  <DD>
  The first argument.  That is, word 1.
@@ -10255,7 +10302,9 @@ initialization file such as
  <I>.inputrc</I>,
  
  but each binding or command must be passed as a separate argument;
-e.g., aqdq\C-x\C-rdq: re-read-init-fileaq.
+e.g., '&quot;
+\C-x\C-r&quot;
+: re-read-init-file'.
  In the following descriptions, output available to be re-read is formatted
  as commands that would appear in a
  <B>readline</B>
@@ -12383,7 +12432,7 @@ in the same way as <B>echo -e</B>.
  <DD>
  causes <B>printf</B> to output the corresponding
  <I>argument</I> in a format that can be reused as shell input.
-<B>%q</B> and <B>%Q</B> use the <B>$aqaq</B> quoting style if any characters
+<B>%q</B> and <B>%Q</B> use the <B>$''</B> quoting style if any characters
  in the argument string require it, and backslash quoting otherwise.
  If the format string uses the <I>printf</I> alternate form, these two
  formats quote the argument string using single quotes.
@@ -13702,7 +13751,9 @@ under
  <DT><B>extquote</B>
  
  <DD>
-If set, <B>$</B>aq<I>string</I>aq and <B>$</B>dq<I>string</I>dq quoting is
+If set, <B>$</B>'<I>string</I>' and <B>$</B>&quot;
+<I>string</I>&quot;
+ quoting is
  performed within <B>${</B><I>parameter</I><B>}</B> expansions
  enclosed in double quotes.  This option is enabled by default.
  <DT><B>failglob</B>
@@ -13930,7 +13981,7 @@ If set,
  <B>bash</B>
  
  encloses the translated results of
-<B>$dq</B>...<B>dq</B>
+<B>$ ... </B>
  
  quoting in single quotes instead of double quotes.
  If the string is not translated, this has no effect.
@@ -14909,7 +14960,7 @@ and it is required for bash-5.1 and later versions.
  <DL COMPACT><DT><DD>
  <DL COMPACT>
  <DT>*<DD>
-quoting the rhs of the <B>[[</B> command's regexp matching operator (=ti)
+quoting the rhs of the <B>[[</B> command's regexp matching operator (=~)
  has no special effect
  </DL></DL>
  
@@ -14982,7 +15033,7 @@ are not special within double-quoted word expansions
  <DT>*<DD>
  the shell does not print a warning message if an attempt is made to
  use a quoted compound assignment as an argument to declare
-(e.g., declare -a foo=aq(1 2)aq). Later versions warn that this usage is
+(e.g., declare -a foo='(1 2)'). Later versions warn that this usage is
  deprecated
  <DT>*<DD>
  word expansion errors are considered non-fatal errors that cause the
@@ -15246,7 +15297,7 @@ script.
  <DT><I>The Gnu History Library</I>, Brian Fox and Chet Ramey<DD>
  <DT><I>Portable Operating System Interface (POSIX) Part 2: Shell and Utilities</I>, IEEE -<DD>
  <A HREF="http://pubs.opengroup.org/onlinepubs/9699919799/">http://pubs.opengroup.org/onlinepubs/9699919799/</A>
-<DT><A HREF="http://tiswww.case.edu/tichet/bash/POSIX">http://tiswww.case.edu/tichet/bash/POSIX</A> - a description of posix mode<DD>
+<DT><A HREF="http://tiswww.case.edu/~chet/bash/POSIX">http://tiswww.case.edu/~chet/bash/POSIX</A> - a description of posix mode<DD>
  <DT><I>sh</I>(1), <I>ksh</I>(1), <I>csh</I>(1)<DD>
  <DT><I>emacs</I>(1), <I>vi</I>(1)<DD>
  <DT><I>readline</I>(3)<DD>
@@ -15268,28 +15319,28 @@ The <B>bash</B> executable
  <DD>
  The systemwide initialization file, executed for login shells
  <DT>
-<I>ti/.bash_profile</I>
+<A HREF="file:~/.bash_profile"><I>~/.bash_profile</I></A>
  
  <DD>
  The personal initialization file, executed for login shells
  <DT>
-<I>ti/.bashrc</I>
+<A HREF="file:~/.bashrc"><I>~/.bashrc</I></A>
  
  <DD>
  The individual per-interactive-shell startup file
  <DT>
-<I>ti/.bash_logout</I>
+<A HREF="file:~/.bash_logout"><I>~/.bash_logout</I></A>
  
  <DD>
  The individual login shell cleanup file, executed when a login shell exits
  <DT>
-<I>ti/.bash_history</I>
+<A HREF="file:~/.bash_history"><I>~/.bash_history</I></A>
  
  <DD>
  The default value of <B>HISTFILE</B>, the file in which bash saves the
  command history
  <DT>
-<I>ti/.inputrc</I>
+<A HREF="file:~/.inputrc"><I>~/.inputrc</I></A>
  
  <DD>
  Individual <I>readline</I> initialization file
@@ -15515,7 +15566,7 @@ There may be only one active coprocess at a time.
  <DT><A HREF="#lbDI">BUGS</A><DD>
  </DL>
  <HR>
-This document was created by man2html from /usr/local/src/bash/bash-20240205/doc/bash.1.<BR>
-Time: 07 February 2024 09:26:02 EST
+This document was created by man2html from /usr/local/src/bash/bash-20240209/doc/bash.1.<BR>
+Time: 13 February 2024 10:19:05 EST
  </BODY>
  </HTML>
diff --git a/doc/bash.pdf b/doc/bash.pdf

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diff --git a/doc/bashref.dvi b/doc/bashref.dvi

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diff --git a/doc/bashref.log b/doc/bashref.log

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--- a/doc/bashref.log
+++ b/doc/bashref.log
@@ -1,12 +1,12 @@
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+This is pdfTeX, Version 3.141592653-2.6-1.40.25 (TeX Live 2023/MacPorts 2023.66589_3) (preloaded format=etex 2024.1.2)  9 FEB 2024 10:34
  entering extended mode
   restricted \write18 enabled.
   file:line:error style messages enabled.
   %&-line parsing enabled.
-**\input /usr/local/src/bash/bash-20240205/doc/bashref.texi \input /usr/local/s
-rc/bash/bash-20240205/doc/bashref.texi
-(/usr/local/src/bash/bash-20240205/doc/bashref.texi
-(/usr/local/src/bash/bash-20240205/doc/texinfo.tex
+**\nonstopmode \input /usr/local/src/bash/bash-20240209/doc/bashref.texi \input
+ /usr/local/src/bash/bash-20240209/doc/bashref.texi
+(/usr/local/src/bash/bash-20240209/doc/bashref.texi
+(/usr/local/src/bash/bash-20240209/doc/texinfo.tex
  Loading texinfo [version 2015-11-22.14]:
  \outerhsize=\dimen16
  \outervsize=\dimen17
@@ -162,23 +162,20 @@ This is `epsf.tex' v2.7.4 <14 February 2011>
  texinfo.tex: doing @include of version.texi
  
  
-(/usr/local/src/bash/bash-20240205/doc/version.texi) [1{/opt/local/var/db/texmf
-/fonts/map/pdftex/updmap/pdftex.map}] [2]
-(/usr/local/build/bash/bash-20240205/doc/bashref.toc [-1] [-2] [-3]) [-4]
-(/usr/local/build/bash/bash-20240205/doc/bashref.toc)
-(/usr/local/build/bash/bash-20240205/doc/bashref.toc) Chapter 1
+(/usr/local/src/bash/bash-20240209/doc/version.texi) [1] [2]
+(/usr/local/build/bash/bash-20240209/doc/bashref.toc [-1] [-2] [-3]) [-4]
+Chapter 1
  \openout0 = `bashref.toc'.
  
-
-(/usr/local/build/bash/bash-20240205/doc/bashref.aux)
+ (/usr/local/build/bash/bash-20240209/doc/bashref.aux)
  \openout1 = `bashref.aux'.
  
- Chapter 2 [1] [2]
+ Chapter 2
+[1] [2]
  @cpindfile=@write2
  \openout2 = `bashref.cp'.
  
-
-[3] Chapter 3 [4] [5] [6] [7]
+ [3] Chapter 3 [4] [5] [6] [7]
  @vrindfile=@write3
  \openout3 = `bashref.vr'.
  
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-[25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39]
-[40] [41] [42] [43] [44] [45] [46] [47] Chapter 4 [48]
+[9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23]
+[24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38]
+[39] [40] [41] [42] [43] [44] [45] [46] [47] Chapter 4 [48]
  @btindfile=@write5
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- [49] [50] [51] [52]
-[53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67]
-[68]
+ [49] [50] [51]
+[52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66]
+[67] [68]
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@@ -263,7 +259,7 @@ Overfull \hbox (38.26585pt too wide) in paragraph at lines 5436--5436
  [119] [120]
  texinfo.tex: doing @include of rluser.texi
  
- (/usr/local/src/bash/bash-20240205/lib/readline/doc/rluser.texi
+ (/usr/local/src/bash/bash-20240209/lib/readline/doc/rluser.texi
  Chapter 8 [121] [122] [123] [124] [125] [126] [127] [128] [129] [130] [131]
  [132]
  Underfull \hbox (badness 7540) in paragraph at lines 882--888
@@ -313,7 +309,7 @@ gnored[]
  texinfo.tex: doing @include of hsuser.texi
  
  
-(/usr/local/src/bash/bash-20240205/lib/readline/doc/hsuser.texi Chapter 9
+(/usr/local/src/bash/bash-20240209/lib/readline/doc/hsuser.texi Chapter 9
  [158] [159] [160] [161] [162] [163]) Chapter 10 [164] [165] [166] [167]
  [168]
  Underfull \hbox (badness 10000) in paragraph at lines 9801--9810
@@ -345,37 +341,16 @@ extrm '[], `@texttt strict-posix-default[]@textrm '[], and
  [178] [179] Appendix C [180]
  texinfo.tex: doing @include of fdl.texi
  
- (/usr/local/src/bash/bash-20240205/doc/fdl.texi
+ (/usr/local/src/bash/bash-20240209/doc/fdl.texi
  [181] [182] [183] [184] [185] [186] [187]) Appendix D [188] [189] [190]
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-(3.4.2)i([Sp)s(ecial)e(P)m(arameters],)150 4327 y(page)31
+(3.4.2)i([Sp)s(ecial)e(P)m(arameters],)150 4339 y(page)31
  b(23\),)h(and)e Ft("${)p Fj(name)p Ft([@]}")d Fu(and)i
  Ft(${)p Fj(name)p Ft([*]})f Fu(\(see)j(Section)h(6.7)f([Arra)m(ys],)g
  (page)g(103\).)150 4535 y Fk(3.5.1)63 b(Brace)40 b(Expansion)150
@@ -9930,78 +9940,75 @@ b(Basic)32 b(Shell)e(F)-8 b(eatures)2246 b(25)275 299
  y(Brace)37 b(expansions)f(ma)m(y)h(b)s(e)f(nested.)59
  b(The)36 b(results)g(of)h(eac)m(h)g(expanded)f(string)g(are)h(not)g
  (sorted;)150 408 y(left)31 b(to)g(righ)m(t)g(order)f(is)g(preserv)m
-(ed.)41 b(F)-8 b(or)31 b(example,)390 537 y Ft(bash$)46
-b(echo)h(a{d,c,b}e)390 647 y(ade)g(ace)g(abe)275 776
+(ed.)41 b(F)-8 b(or)31 b(example,)390 546 y Ft(bash$)46
+b(echo)h(a{d,c,b}e)390 656 y(ade)g(ace)g(abe)275 793
  y Fu(A)23 b(sequence)g(expression)g(tak)m(es)i(the)e(form)g
  Ft({)p Fj(x)p Ft(..)p Fj(y)p Ft([..)p Fj(incr)p Ft(]})p
  Fu(,)e(where)i Fr(x)29 b Fu(and)23 b Fr(y)30 b Fu(are)24
-b(either)g(in)m(tegers)150 886 y(or)34 b(letters,)i(and)d
+b(either)g(in)m(tegers)150 903 y(or)34 b(letters,)i(and)d
  Fr(incr)p Fu(,)h(an)g(optional)g(incremen)m(t,)i(is)d(an)h(in)m(teger.)
  52 b(When)33 b(in)m(tegers)i(are)f(supplied,)g(the)150
-995 y(expression)f(expands)f(to)i(eac)m(h)g(n)m(um)m(b)s(er)e(b)s(et)m
-(w)m(een)i Fr(x)39 b Fu(and)33 b Fr(y)p Fu(,)h(inclusiv)m(e.)50
-b(Supplied)31 b(in)m(tegers)k(ma)m(y)f(b)s(e)150 1105
-y(pre\014xed)h(with)h(`)p Ft(0)p Fu(')g(to)h(force)g(eac)m(h)h(term)e
-(to)h(ha)m(v)m(e)g(the)g(same)g(width.)57 b(When)36 b(either)h
-Fr(x)42 b Fu(or)37 b Fr(y)43 b Fu(b)s(egins)150 1214
-y(with)37 b(a)h(zero,)j(the)c(shell)h(attempts)h(to)f(force)g(all)g
+1012 y(expression)29 b(expands)g(to)h(eac)m(h)h(n)m(um)m(b)s(er)d(b)s
+(et)m(w)m(een)i Fr(x)36 b Fu(and)29 b Fr(y)p Fu(,)h(inclusiv)m(e.)41
+b(When)29 b(either)h Fr(x)36 b Fu(or)29 b Fr(y)37 b Fu(b)s(egins)150
+1122 y(with)g(a)h(zero,)j(the)c(shell)h(attempts)h(to)f(force)g(all)g
  (generated)h(terms)e(to)i(con)m(tain)g(the)e(same)h(n)m(um)m(b)s(er)150
-1324 y(of)30 b(digits,)h(zero-padding)f(where)f(necessary)-8
+1232 y(of)30 b(digits,)h(zero-padding)f(where)f(necessary)-8
  b(.)41 b(When)30 b(letters)g(are)h(supplied,)d(the)i(expression)g
-(expands)150 1433 y(to)k(eac)m(h)g(c)m(haracter)h(lexicographically)h
+(expands)150 1341 y(to)k(eac)m(h)g(c)m(haracter)h(lexicographically)h
  (b)s(et)m(w)m(een)e Fr(x)40 b Fu(and)32 b Fr(y)p Fu(,)i(inclusiv)m(e,)i
-(using)c(the)i(default)f(C)g(lo)s(cale.)150 1543 y(Note)f(that)f(b)s
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  (oth)f Fr(x)37 b Fu(and)30 b Fr(y)38 b Fu(m)m(ust)31
  b(b)s(e)f(of)h(the)g(same)g(t)m(yp)s(e)g(\(in)m(teger)h(or)f(letter\).)
-43 b(When)30 b(the)h(incremen)m(t)150 1653 y(is)e(supplied,)g(it)h(is)f
+43 b(When)30 b(the)h(incremen)m(t)150 1560 y(is)e(supplied,)g(it)h(is)f
  (used)f(as)i(the)f(di\013erence)h(b)s(et)m(w)m(een)g(eac)m(h)g(term.)41
  b(The)29 b(default)g(incremen)m(t)h(is)f(1)h(or)f(-1)150
-1762 y(as)i(appropriate.)275 1891 y(Brace)36 b(expansion)g(is)f(p)s
+1670 y(as)i(appropriate.)275 1808 y(Brace)36 b(expansion)g(is)f(p)s
  (erformed)f(b)s(efore)h(an)m(y)h(other)g(expansions,)h(and)e(an)m(y)g
-(c)m(haracters)i(sp)s(ecial)150 2001 y(to)32 b(other)g(expansions)g
+(c)m(haracters)i(sp)s(ecial)150 1917 y(to)32 b(other)g(expansions)g
  (are)g(preserv)m(ed)f(in)h(the)f(result.)45 b(It)32 b(is)g(strictly)g
-(textual.)46 b(Bash)32 b(do)s(es)f(not)h(apply)150 2110
+(textual.)46 b(Bash)32 b(do)s(es)f(not)h(apply)150 2027
  y(an)m(y)27 b(syn)m(tactic)i(in)m(terpretation)g(to)f(the)f(con)m(text)
  i(of)e(the)g(expansion)g(or)g(the)h(text)g(b)s(et)m(w)m(een)f(the)h
-(braces.)275 2239 y(A)h(correctly-formed)i(brace)f(expansion)f(m)m(ust)
+(braces.)275 2164 y(A)h(correctly-formed)i(brace)f(expansion)f(m)m(ust)
  h(con)m(tain)h(unquoted)e(op)s(ening)g(and)g(closing)i(braces,)150
-2349 y(and)h(at)i(least)g(one)f(unquoted)g(comma)g(or)g(a)h(v)-5
+2274 y(and)h(at)i(least)g(one)f(unquoted)g(comma)g(or)g(a)h(v)-5
  b(alid)33 b(sequence)g(expression.)48 b(An)m(y)33 b(incorrectly)h
-(formed)150 2458 y(brace)d(expansion)f(is)g(left)h(unc)m(hanged.)275
-2587 y(A)25 b Fi({)h Fu(or)f(`)p Ft(,)p Fu(')g(ma)m(y)h(b)s(e)f(quoted)
+(formed)150 2384 y(brace)d(expansion)f(is)g(left)h(unc)m(hanged.)275
+2521 y(A)25 b Fi({)h Fu(or)f(`)p Ft(,)p Fu(')g(ma)m(y)h(b)s(e)f(quoted)
  h(with)f(a)g(bac)m(kslash)h(to)g(prev)m(en)m(t)g(its)g(b)s(eing)f
-(considered)g(part)g(of)h(a)g(brace)150 2697 y(expression.)51
+(considered)g(part)g(of)h(a)g(brace)150 2631 y(expression.)51
  b(T)-8 b(o)34 b(a)m(v)m(oid)i(con\015icts)e(with)g(parameter)g
  (expansion,)h(the)f(string)g(`)p Ft(${)p Fu(')g(is)g(not)g(considered)
-150 2807 y(eligible)e(for)e(brace)h(expansion,)f(and)g(inhibits)g
+150 2740 y(eligible)e(for)e(brace)h(expansion,)f(and)g(inhibits)g
  (brace)h(expansion)f(un)m(til)g(the)h(closing)h(`)p Ft(})p
-Fu('.)275 2936 y(This)e(construct)h(is)g(t)m(ypically)i(used)d(as)h
+Fu('.)275 2878 y(This)e(construct)h(is)g(t)m(ypically)i(used)d(as)h
  (shorthand)f(when)g(the)h(common)g(pre\014x)f(of)h(the)g(strings)g(to)
-150 3045 y(b)s(e)f(generated)h(is)g(longer)g(than)f(in)g(the)g(ab)s(o)m
-(v)m(e)i(example:)390 3174 y Ft(mkdir)46 b(/usr/local/src/bash/{old,n)o
-(ew,)o(dist)o(,bug)o(s})275 3303 y Fu(or)390 3432 y Ft(chown)g(root)h
+150 2988 y(b)s(e)f(generated)h(is)g(longer)g(than)f(in)g(the)g(ab)s(o)m
+(v)m(e)i(example:)390 3125 y Ft(mkdir)46 b(/usr/local/src/bash/{old,n)o
+(ew,)o(dist)o(,bug)o(s})275 3263 y Fu(or)390 3400 y Ft(chown)g(root)h
  (/usr/{ucb/{ex,edit},lib/)o({ex?)o(.?*,)o(how)o(_ex})o(})150
-3620 y Fk(3.5.2)63 b(Tilde)41 b(Expansion)150 3767 y
+3603 y Fk(3.5.2)63 b(Tilde)41 b(Expansion)150 3750 y
  Fu(If)29 b(a)h(w)m(ord)g(b)s(egins)f(with)g(an)h(unquoted)f(tilde)h(c)m
  (haracter)h(\(`)p Ft(~)p Fu('\),)g(all)g(of)f(the)g(c)m(haracters)h(up)
-d(to)j(the)f(\014rst)150 3877 y(unquoted)24 b(slash)g(\(or)h(all)h(c)m
+d(to)j(the)f(\014rst)150 3859 y(unquoted)24 b(slash)g(\(or)h(all)h(c)m
  (haracters,)h(if)e(there)g(is)f(no)h(unquoted)e(slash\))i(are)g
-(considered)g(a)g Fr(tilde-pre\014x)p Fu(.)150 3986 y(If)38
+(considered)g(a)g Fr(tilde-pre\014x)p Fu(.)150 3969 y(If)38
  b(none)g(of)g(the)h(c)m(haracters)g(in)f(the)h(tilde-pre\014x)f(are)h
  (quoted,)h(the)f(c)m(haracters)h(in)d(the)i(tilde-pre\014x)150
-4096 y(follo)m(wing)28 b(the)g(tilde)f(are)h(treated)g(as)f(a)g(p)s
+4078 y(follo)m(wing)28 b(the)g(tilde)f(are)h(treated)g(as)f(a)g(p)s
  (ossible)g Fr(login)h(name)p Fu(.)39 b(If)27 b(this)g(login)h(name)f
-(is)g(the)g(n)m(ull)g(string,)150 4205 y(the)35 b(tilde)g(is)g
+(is)g(the)g(n)m(ull)g(string,)150 4188 y(the)35 b(tilde)g(is)g
  (replaced)g(with)f(the)h(v)-5 b(alue)35 b(of)g(the)g
  Ft(HOME)e Fu(shell)i(v)-5 b(ariable.)54 b(If)34 b Ft(HOME)g
-Fu(is)h(unset,)g(the)g(home)150 4315 y(directory)e(of)g(the)f(user)g
+Fu(is)h(unset,)g(the)g(home)150 4298 y(directory)e(of)g(the)f(user)g
  (executing)i(the)e(shell)h(is)f(substituted)g(instead.)47
-b(Otherwise,)33 b(the)g(tilde-pre\014x)150 4425 y(is)d(replaced)h(with)
+b(Otherwise,)33 b(the)g(tilde-pre\014x)150 4407 y(is)d(replaced)h(with)
  f(the)h(home)f(directory)h(asso)s(ciated)h(with)e(the)h(sp)s(eci\014ed)
-e(login)j(name.)275 4554 y(If)g(the)h(tilde-pre\014x)f(is)h(`)p
+e(login)j(name.)275 4545 y(If)g(the)h(tilde-pre\014x)f(is)h(`)p
  Ft(~+)p Fu(',)g(the)g(v)-5 b(alue)33 b(of)g(the)g(shell)g(v)-5
  b(ariable)34 b Ft(PWD)d Fu(replaces)j(the)f(tilde-pre\014x.)47
-b(If)150 4663 y(the)31 b(tilde-pre\014x)f(is)g(`)p Ft(~-)p
+b(If)150 4654 y(the)31 b(tilde-pre\014x)f(is)g(`)p Ft(~-)p
  Fu(',)h(the)f(v)-5 b(alue)31 b(of)g(the)f(shell)h(v)-5
  b(ariable)31 b Ft(OLDPWD)p Fu(,)e(if)h(it)h(is)g(set,)g(is)f
  (substituted.)275 4792 y(If)f(the)h(c)m(haracters)h(follo)m(wing)h(the)
@@ -10801,22 +10808,22 @@ Ft(.)p Fu(')g(and)g(`)p Ft(..)p Fu(',)h(the)f(pattern)g(m)m(ust)g(b)s
  (egin)f(with)h(`)p Ft(.)p Fu(')g(\(for)150 628 y(example,)42
  b(`)p Ft(.?)p Fu('\),)f(ev)m(en)f(if)f Ft(dotglob)d Fu(is)j(set.)67
  b(If)38 b(the)h Ft(globskipdots)d Fu(shell)j(option)g(is)g(enabled,)i
-(the)150 737 y(\014lenames)33 b(`)p Ft(.)p Fu(')g(and)f(`)p
-Ft(..)p Fu(')h(are)g(nev)m(er)g(matc)m(hed,)h(ev)m(en)g(if)e(the)h
-(pattern)g(b)s(egins)f(with)h(a)g(`)p Ft(.)p Fu('.)48
-b(When)33 b(not)150 847 y(matc)m(hing)e(\014lenames,)g(the)g(`)p
-Ft(.)p Fu(')f(c)m(haracter)i(is)f(not)f(treated)i(sp)s(ecially)-8
-b(.)275 976 y(When)30 b(matc)m(hing)i(a)f(\014lename,)h(the)f(slash)f
-(c)m(haracter)j(m)m(ust)d(alw)m(a)m(ys)j(b)s(e)d(matc)m(hed)h
-(explicitly)i(b)m(y)e(a)150 1085 y(slash)d(in)f(the)h(pattern,)h(but)e
-(in)h(other)g(matc)m(hing)h(con)m(texts)h(it)e(can)g(b)s(e)g(matc)m
-(hed)g(b)m(y)g(a)g(sp)s(ecial)h(pattern)150 1195 y(c)m(haracter)j(as)f
-(describ)s(ed)e(b)s(elo)m(w)h(\(see)i(Section)f(3.5.8.1)i([P)m(attern)e
-(Matc)m(hing],)i(page)e(37\).)275 1324 y(See)d(the)g(description)g(of)g
-Ft(shopt)e Fu(in)i(Section)g(4.3.2)i([The)e(Shopt)f(Builtin],)i(page)g
-(73,)g(for)f(a)g(descrip-)150 1433 y(tion)j(of)f(the)h
-Ft(nocaseglob)p Fu(,)d Ft(nullglob)p Fu(,)g Ft(globskipdots)p
-Fu(,)f Ft(failglob)p Fu(,)i(and)h Ft(dotglob)e Fu(options.)275
+(the)150 737 y(\014lenames)23 b(`)p Ft(.)p Fu(')g(and)g(`)p
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+(pattern)150 1195 y(c)m(haracter)j(as)f(describ)s(ed)e(b)s(elo)m(w)h
+(\(see)i(Section)f(3.5.8.1)i([P)m(attern)e(Matc)m(hing],)i(page)e
+(37\).)275 1324 y(See)d(the)g(description)g(of)g Ft(shopt)e
+Fu(in)i(Section)g(4.3.2)i([The)e(Shopt)f(Builtin],)i(page)g(73,)g(for)f
+(a)g(descrip-)150 1433 y(tion)j(of)f(the)h Ft(nocaseglob)p
+Fu(,)d Ft(nullglob)p Fu(,)g Ft(globskipdots)p Fu(,)f
+Ft(failglob)p Fu(,)i(and)h Ft(dotglob)e Fu(options.)275
  1562 y(The)36 b Ft(GLOBIGNORE)d Fu(shell)k(v)-5 b(ariable)37
  b(ma)m(y)g(b)s(e)f(used)g(to)h(restrict)g(the)g(set)g(of)g(\014le)f
  (names)h(matc)m(hing)150 1672 y(a)42 b(pattern.)74 b(If)41
@@ -11152,14 +11159,14 @@ Fr(w)m(ord)p Fu(.)275 2383 y(The)f(format)i(for)f(app)s(ending)f
  (equiv)-5 b(alen)m(t)32 b(to)390 2812 y Ft(>>)p Fj(word)46
  b Ft(2>&1)275 2955 y Fu(\(see)31 b(Duplicating)h(File)f(Descriptors)g
  (b)s(elo)m(w\).)150 3163 y Fk(3.6.6)63 b(Here)41 b(Do)s(cumen)m(ts)150
-3310 y Fu(This)c(t)m(yp)s(e)h(of)f(redirection)i(instructs)e(the)h
-(shell)f(to)i(read)e(input)g(from)g(the)h(curren)m(t)f(source)h(un)m
-(til)g(a)150 3419 y(line)33 b(con)m(taining)g(only)g
-Fr(delimiter)39 b Fu(\(with)32 b(no)g(trailing)i(blanks\))e(is)g(seen.)
-46 b(All)33 b(of)f(the)h(lines)f(read)g(up)f(to)150 3529
-y(that)k(p)s(oin)m(t)f(are)g(then)g(used)g(as)g(the)g(standard)g(input)
-f(\(or)h(\014le)g(descriptor)g Fr(n)g Fu(if)g Fr(n)g
-Fu(is)g(sp)s(eci\014ed\))g(for)g(a)150 3639 y(command.)275
+3310 y Fu(This)36 b(t)m(yp)s(e)h(of)f(redirection)h(instructs)g(the)f
+(shell)h(to)h(read)e(input)g(from)g(the)g(curren)m(t)h(source)g(un)m
+(til)f(it)150 3419 y(reads)31 b(a)g(line)g(con)m(taining)h(only)f
+Fr(delimiter)38 b Fu(\(with)31 b(no)g(trailing)h(blanks\).)41
+b(All)32 b(of)f(the)g(lines)g(read)f(up)g(to)150 3529
+y(that)35 b(p)s(oin)m(t)f(are)g(then)g(used)g(as)g(the)g(standard)g
+(input)f(\(or)h(\014le)g(descriptor)g Fr(n)g Fu(if)g
+Fr(n)g Fu(is)g(sp)s(eci\014ed\))g(for)g(a)150 3639 y(command.)275
  3782 y(The)29 b(format)i(of)g(here-do)s(cumen)m(ts)f(is:)390
  3925 y Ft([)p Fj(n)p Ft(]<<[)p Fq(\000)p Ft(])p Fj(word)772
  4034 y(here-document)390 4144 y(delimiter)275 4287 y
@@ -11414,290 +11421,294 @@ TeXDict begin 45 50 bop 150 -116 a Fu(Chapter)30 b(3:)41
  b(Basic)32 b(Shell)e(F)-8 b(eatures)2246 b(45)275 299
  y(A)41 b(command)g(in)m(v)m(ok)m(ed)i(in)e(this)h(separate)g(en)m
  (vironmen)m(t)g(cannot)g(a\013ect)h(the)f(shell's)g(execution)150
-408 y(en)m(vironmen)m(t.)275 540 y(A)30 b Fr(subshell)j
+408 y(en)m(vironmen)m(t.)275 542 y(A)30 b Fr(subshell)j
  Fu(is)d(a)h(cop)m(y)g(of)g(the)f(shell)h(pro)s(cess.)275
-671 y(Command)k(substitution,)j(commands)e(group)s(ed)f(with)i(paren)m
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  %%Page: 54 60
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  %%Page: 61 67
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  %%Page: 63 69
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  %%Page: 88 94
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  (its)g(startup)f(\014les.)38 b(If)24 b(an)m(y)h(of)f(the)h(\014les)f
-(exist)h(but)e(cannot)150 2216 y(b)s(e)29 b(read,)i(Bash)f(rep)s(orts)f
+(exist)h(but)e(cannot)150 2326 y(b)s(e)29 b(read,)i(Bash)f(rep)s(orts)f
  (an)h(error.)40 b(Tildes)30 b(are)g(expanded)f(in)h(\014lenames)g(as)g
-(describ)s(ed)f(ab)s(o)m(v)m(e)i(under)150 2326 y(Tilde)f(Expansion)g
+(describ)s(ed)f(ab)s(o)m(v)m(e)i(under)150 2436 y(Tilde)f(Expansion)g
  (\(see)h(Section)h(3.5.2)g([Tilde)e(Expansion],)h(page)g(25\).)275
-2473 y(In)m(teractiv)m(e)h(shells)f(are)g(describ)s(ed)e(in)h(Section)h
+2569 y(In)m(teractiv)m(e)h(shells)f(are)g(describ)s(ed)e(in)h(Section)h
  (6.3)h([In)m(teractiv)m(e)h(Shells],)d(page)h(97.)150
-2684 y Fk(In)m(v)m(ok)m(ed)40 b(as)h(an)f(in)m(teractiv)m(e)f(login)j
-(shell,)g(or)g(with)e Fh(--login)150 2831 y Fu(When)c(Bash)f(is)h(in)m
+2766 y Fk(In)m(v)m(ok)m(ed)40 b(as)h(an)f(in)m(teractiv)m(e)f(login)j
+(shell,)g(or)g(with)e Fh(--login)150 2913 y Fu(When)c(Bash)f(is)h(in)m
  (v)m(ok)m(ed)h(as)f(an)g(in)m(teractiv)m(e)j(login)d(shell,)i(or)e(as)g
-(a)g(non-in)m(teractiv)m(e)i(shell)e(with)g(the)150 2940
+(a)g(non-in)m(teractiv)m(e)i(shell)e(with)g(the)150 3023
  y Ft(--login)30 b Fu(option,)k(it)f(\014rst)e(reads)h(and)g(executes)i
  (commands)e(from)f(the)i(\014le)f Ft(/etc/profile)p Fu(,)e(if)i(that)
-150 3050 y(\014le)44 b(exists.)80 b(After)44 b(reading)g(that)g
+150 3132 y(\014le)44 b(exists.)80 b(After)44 b(reading)g(that)g
  (\014le,)j(it)d(lo)s(oks)g(for)f Ft(~/.bash_profile)p
-Fu(,)g Ft(~/.bash_login)p Fu(,)h(and)150 3160 y Ft(~/.profile)p
+Fu(,)g Ft(~/.bash_login)p Fu(,)h(and)150 3242 y Ft(~/.profile)p
  Fu(,)25 b(in)i(that)g(order,)h(and)e(reads)h(and)f(executes)j(commands)
-d(from)h(the)g(\014rst)f(one)i(that)f(exists)150 3269
+d(from)h(the)g(\014rst)f(one)i(that)f(exists)150 3351
  y(and)j(is)h(readable.)42 b(The)30 b Ft(--noprofile)d
  Fu(option)k(ma)m(y)g(b)s(e)f(used)g(when)g(the)h(shell)f(is)h(started)g
-(to)g(inhibit)150 3379 y(this)f(b)s(eha)m(vior.)275 3526
+(to)g(inhibit)150 3461 y(this)f(b)s(eha)m(vior.)275 3594
  y(When)h(an)g(in)m(teractiv)m(e)k(login)d(shell)g(exits,)h(or)f(a)g
  (non-in)m(teractiv)m(e)i(login)f(shell)e(executes)i(the)f
-Ft(exit)150 3635 y Fu(builtin)g(command,)i(Bash)e(reads)h(and)f
+Ft(exit)150 3704 y Fu(builtin)g(command,)i(Bash)e(reads)h(and)f
  (executes)i(commands)e(from)g(the)h(\014le)g Ft(~/.bash_logout)p
-Fu(,)d(if)i(it)150 3745 y(exists.)150 3956 y Fk(In)m(v)m(ok)m(ed)40
+Fu(,)d(if)i(it)150 3814 y(exists.)150 4011 y Fk(In)m(v)m(ok)m(ed)40
  b(as)h(an)f(in)m(teractiv)m(e)f(non-login)k(shell)150
-4103 y Fu(When)g(an)h(in)m(teractiv)m(e)i(shell)e(that)g(is)f(not)h(a)g
+4158 y Fu(When)g(an)h(in)m(teractiv)m(e)i(shell)e(that)g(is)f(not)h(a)g
  (login)g(shell)g(is)f(started,)48 b(Bash)c(reads)f(and)g(executes)150
-4213 y(commands)31 b(from)g Ft(~/.bashrc)p Fu(,)f(if)h(that)h(\014le)g
+4267 y(commands)31 b(from)g Ft(~/.bashrc)p Fu(,)f(if)h(that)h(\014le)g
  (exists.)44 b(This)31 b(ma)m(y)h(b)s(e)f(inhibited)g(b)m(y)g(using)g
-(the)h Ft(--norc)150 4322 y Fu(option.)40 b(The)27 b
+(the)h Ft(--norc)150 4377 y Fu(option.)40 b(The)27 b
  Ft(--rcfile)h Fj(file)e Fu(option)h(will)g(force)h(Bash)f(to)h(read)f
-(and)f(execute)j(commands)d(from)h Fr(\014le)150 4432
-y Fu(instead)k(of)f Ft(~/.bashrc)p Fu(.)275 4579 y(So,)g(t)m(ypically)
+(and)f(execute)j(commands)d(from)h Fr(\014le)150 4486
+y Fu(instead)k(of)f Ft(~/.bashrc)p Fu(.)275 4620 y(So,)g(t)m(ypically)
  -8 b(,)33 b(y)m(our)d Ft(~/.bash_profile)c Fu(con)m(tains)32
-b(the)f(line)390 4725 y Ft(if)47 b([)h(-f)f(~/.bashrc)e(];)i(then)g(.)g
-(~/.bashrc;)e(fi)150 4872 y Fu(after)31 b(\(or)g(b)s(efore\))f(an)m(y)h
+b(the)f(line)390 4753 y Ft(if)47 b([)h(-f)f(~/.bashrc)e(];)i(then)g(.)g
+(~/.bashrc;)e(fi)150 4886 y Fu(after)31 b(\(or)g(b)s(efore\))f(an)m(y)h
  (login-sp)s(eci\014c)g(initializations.)150 5083 y Fk(In)m(v)m(ok)m(ed)
  40 b(non-in)m(teractiv)m(ely)150 5230 y Fu(When)33 b(Bash)g(is)g
  (started)h(non-in)m(teractiv)m(ely)-8 b(,)37 b(to)d(run)e(a)h(shell)h
@@ -15807,12 +15844,12 @@ b(and)e(an)g(index)g(of)g(-1)h(refers)f(to)h(the)g(last)g(elemen)m(t.)
  275 1639 y(Referencing)41 b(an)f(arra)m(y)h(v)-5 b(ariable)42
  b(without)e(a)h(subscript)e(is)i(equiv)-5 b(alen)m(t)42
  b(to)f(referencing)g(with)g(a)150 1748 y(subscript)34
-b(of)i(0.)57 b(An)m(y)35 b(reference)h(to)g(a)g(v)-5
-b(ariable)37 b(using)e(a)g(v)-5 b(alid)36 b(subscript)f(is)g(legal,)k
-(and)c(Bash)h(will)150 1858 y(create)c(an)e(arra)m(y)h(if)f(necessary)
--8 b(.)275 1992 y(An)35 b(arra)m(y)i(v)-5 b(ariable)37
-b(is)g(considered)f(set)h(if)f(a)h(subscript)e(has)h(b)s(een)g
-(assigned)g(a)h(v)-5 b(alue.)59 b(The)36 b(n)m(ull)150
+b(of)h(0.)55 b(An)m(y)36 b(reference)f(to)h(a)g(v)-5
+b(ariable)35 b(using)g(a)h(v)-5 b(alid)35 b(subscript)f(is)h(v)-5
+b(alid,)37 b(and)d(Bash)i(will)150 1858 y(create)c(an)e(arra)m(y)h(if)f
+(necessary)-8 b(.)275 1992 y(An)35 b(arra)m(y)i(v)-5
+b(ariable)37 b(is)g(considered)f(set)h(if)f(a)h(subscript)e(has)h(b)s
+(een)g(assigned)g(a)h(v)-5 b(alue.)59 b(The)36 b(n)m(ull)150
  2102 y(string)30 b(is)h(a)g(v)-5 b(alid)30 b(v)-5 b(alue.)275
  2236 y(It)29 b(is)h(p)s(ossible)f(to)h(obtain)g(the)f(k)m(eys)i
  (\(indices\))f(of)f(an)h(arra)m(y)g(as)f(w)m(ell)i(as)f(the)f(v)-5
@@ -16251,79 +16288,81 @@ b(This)42 b(means)g(that)h(command)f(substitution)f(will)i(not)g
  (expand)e(aliases)j(that)f(are)330 408 y(de\014ned)34
  b(after)h(the)g(command)f(substitution)h(is)g(initially)h(parsed)e
  (\(e.g.,)k(as)d(part)f(of)h(a)g(function)330 518 y(de\014nition\).)199
-652 y(9.)61 b(The)38 b Fm(posix)h Ft(PS1)f Fu(and)g Ft(PS2)g
+646 y(9.)61 b(The)38 b Fm(posix)h Ft(PS1)f Fu(and)g Ft(PS2)g
  Fu(expansions)g(of)i(`)p Ft(!)p Fu(')f(to)g(the)g(history)g(n)m(um)m(b)
  s(er)f(and)g(`)p Ft(!!)p Fu(')h(to)g(`)p Ft(!)p Fu(')h(are)330
-762 y(enabled,)26 b(and)f(parameter)g(expansion)g(is)g(p)s(erformed)e
+756 y(enabled,)26 b(and)f(parameter)g(expansion)g(is)g(p)s(erformed)e
  (on)i(the)g(v)-5 b(alues)25 b(of)g Ft(PS1)f Fu(and)h
-Ft(PS2)f Fu(regardless)330 871 y(of)31 b(the)f(setting)i(of)e(the)h
-Ft(promptvars)c Fu(option.)154 1005 y(10.)61 b(The)30
+Ft(PS2)f Fu(regardless)330 865 y(of)31 b(the)f(setting)i(of)e(the)h
+Ft(promptvars)c Fu(option.)154 993 y(10.)61 b(The)30
  b Fm(posix)g Fu(startup)f(\014les)i(are)g(executed)g(\()p
  Ft($ENV)p Fu(\))f(rather)g(than)g(the)h(normal)f(Bash)g(\014les.)154
-1139 y(11.)61 b(Tilde)30 b(expansion)g(is)f(only)h(p)s(erformed)f(on)h
+1121 y(11.)61 b(Tilde)30 b(expansion)g(is)f(only)h(p)s(erformed)f(on)h
  (assignmen)m(ts)g(preceding)g(a)g(command)g(name,)g(rather)330
-1249 y(than)g(on)g(all)i(assignmen)m(t)f(statemen)m(ts)h(on)e(the)h
-(line.)154 1383 y(12.)61 b(The)29 b(default)g(history)g(\014le)g(is)g
+1230 y(than)g(on)g(all)i(assignmen)m(t)f(statemen)m(ts)h(on)e(the)h
+(line.)154 1358 y(12.)61 b(The)29 b(default)g(history)g(\014le)g(is)g
  Ft(~/.sh_history)d Fu(\(this)j(is)g(the)g(default)h(v)-5
-b(alue)29 b(the)h(shell)f(assigns)g(to)330 1492 y Ft($HISTFILE)p
-Fu(\).)154 1626 y(13.)61 b(Redirection)25 b(op)s(erators)f(do)g(not)g
+b(alue)29 b(the)h(shell)f(assigns)g(to)330 1468 y Ft($HISTFILE)p
+Fu(\).)154 1596 y(13.)61 b(Redirection)25 b(op)s(erators)f(do)g(not)g
  (p)s(erform)f(\014lename)h(expansion)g(on)g(the)g(w)m(ord)f(in)h(the)g
-(redirection)330 1736 y(unless)30 b(the)g(shell)h(is)f(in)m(teractiv)m
-(e.)154 1870 y(14.)61 b(Redirection)31 b(op)s(erators)g(do)f(not)h(p)s
+(redirection)330 1705 y(unless)30 b(the)g(shell)h(is)f(in)m(teractiv)m
+(e.)154 1833 y(14.)61 b(Redirection)31 b(op)s(erators)g(do)f(not)h(p)s
  (erform)e(w)m(ord)h(splitting)h(on)f(the)h(w)m(ord)f(in)g(the)g
-(redirection.)154 2004 y(15.)61 b(F)-8 b(unction)35 b(names)g(m)m(ust)f
+(redirection.)154 1961 y(15.)61 b(F)-8 b(unction)35 b(names)g(m)m(ust)f
  (b)s(e)g(v)-5 b(alid)35 b(shell)f Ft(name)p Fu(s.)52
  b(That)34 b(is,)i(they)f(ma)m(y)g(not)g(con)m(tain)g(c)m(haracters)330
-2113 y(other)e(than)g(letters,)h(digits,)h(and)d(underscores,)h(and)f
+2071 y(other)e(than)g(letters,)h(digits,)h(and)d(underscores,)h(and)f
  (ma)m(y)h(not)g(start)h(with)e(a)h(digit.)49 b(Declaring)330
-2223 y(a)31 b(function)f(with)g(an)g(in)m(v)-5 b(alid)31
+2180 y(a)31 b(function)f(with)g(an)g(in)m(v)-5 b(alid)31
  b(name)g(causes)f(a)h(fatal)h(syn)m(tax)f(error)f(in)g(non-in)m
-(teractiv)m(e)j(shells.)154 2357 y(16.)61 b(F)-8 b(unction)31
+(teractiv)m(e)j(shells.)154 2308 y(16.)61 b(F)-8 b(unction)31
  b(names)f(ma)m(y)h(not)g(b)s(e)f(the)g(same)h(as)g(one)f(of)h(the)f
-Fm(posix)g Fu(sp)s(ecial)h(builtins.)154 2491 y(17.)61
+Fm(posix)g Fu(sp)s(ecial)h(builtins.)154 2436 y(17.)61
  b(Ev)m(en)27 b(if)h(a)f(shell)h(function)f(whose)g(name)g(con)m(tains)i
  (a)f(slash)f(w)m(as)g(de\014ned)g(b)s(efore)f(en)m(tering)j
-Fm(posix)330 2600 y Fu(mo)s(de,)h(the)h(shell)f(will)h(not)g(execute)g
+Fm(posix)330 2545 y Fu(mo)s(de,)h(the)h(shell)f(will)h(not)g(execute)g
  (a)g(function)f(whose)g(name)h(con)m(tains)g(one)g(or)f(more)h
-(slashes.)154 2734 y(18.)61 b Fm(posix)30 b Fu(sp)s(ecial)h(builtins)e
-(are)i(found)e(b)s(efore)h(shell)h(functions)f(during)f(command)h(lo)s
-(okup.)154 2868 y(19.)61 b(When)48 b(prin)m(ting)g(shell)h(function)f
-(de\014nitions)g(\(e.g.,)55 b(b)m(y)48 b Ft(type)p Fu(\),)k(Bash)d(do)s
-(es)f(not)h(prin)m(t)f(the)330 2978 y Ft(function)28
-b Fu(k)m(eyw)m(ord.)154 3112 y(20.)61 b(Literal)28 b(tildes)g(that)f
-(app)s(ear)f(as)i(the)f(\014rst)f(c)m(haracter)j(in)d(elemen)m(ts)j(of)
-e(the)g Ft(PATH)f Fu(v)-5 b(ariable)27 b(are)h(not)330
-3221 y(expanded)i(as)g(describ)s(ed)f(ab)s(o)m(v)m(e)j(under)d(Section)
-i(3.5.2)h([Tilde)f(Expansion],)f(page)h(25.)154 3355
-y(21.)61 b(The)29 b Ft(time)g Fu(reserv)m(ed)h(w)m(ord)g(ma)m(y)g(b)s
-(e)g(used)f(b)m(y)h(itself)g(as)g(a)h(command.)40 b(When)30
-b(used)f(in)g(this)h(w)m(a)m(y)-8 b(,)330 3465 y(it)33
-b(displa)m(ys)g(timing)g(statistics)h(for)e(the)h(shell)g(and)f(its)g
-(completed)i(c)m(hildren.)47 b(The)32 b Ft(TIMEFORMAT)330
-3574 y Fu(v)-5 b(ariable)31 b(con)m(trols)h(the)e(format)h(of)g(the)f
-(timing)h(information.)154 3708 y(22.)61 b(When)33 b(parsing)g(and)f
-(expanding)h(a)h($)p Fi({)6 b Fu(.)22 b(.)h(.)11 b Fi(})33
-b Fu(expansion)g(that)h(app)s(ears)f(within)f(double)h(quotes,)330
-3818 y(single)42 b(quotes)g(are)g(no)g(longer)g(sp)s(ecial)g(and)f
-(cannot)i(b)s(e)e(used)g(to)h(quote)g(a)g(closing)h(brace)f(or)330
-3927 y(other)31 b(sp)s(ecial)h(c)m(haracter,)i(unless)c(the)i(op)s
-(erator)f(is)g(one)h(of)f(those)h(de\014ned)e(to)i(p)s(erform)e
-(pattern)330 4037 y(remo)m(v)-5 b(al.)42 b(In)30 b(this)g(case,)i(they)
-e(do)g(not)h(ha)m(v)m(e)h(to)f(app)s(ear)e(as)i(matc)m(hed)g(pairs.)154
-4171 y(23.)61 b(The)29 b(parser)g(do)s(es)g(not)h(recognize)h
+(slashes.)154 2673 y(18.)61 b Fm(posix)25 b Fu(sp)s(ecial)i(builtins)f
+(are)g(found)f(b)s(efore)h(shell)g(functions)g(during)f(command)g(lo)s
+(okup,)i(includ-)330 2783 y(ing)k(output)e(prin)m(ted)h(b)m(y)h(the)f
+Ft(type)f Fu(and)h Ft(command)f Fu(builtins.)154 2911
+y(19.)61 b(When)48 b(prin)m(ting)g(shell)h(function)f(de\014nitions)g
+(\(e.g.,)55 b(b)m(y)48 b Ft(type)p Fu(\),)k(Bash)d(do)s(es)f(not)h
+(prin)m(t)f(the)330 3020 y Ft(function)28 b Fu(k)m(eyw)m(ord.)154
+3148 y(20.)61 b(Literal)28 b(tildes)g(that)f(app)s(ear)f(as)i(the)f
+(\014rst)f(c)m(haracter)j(in)d(elemen)m(ts)j(of)e(the)g
+Ft(PATH)f Fu(v)-5 b(ariable)27 b(are)h(not)330 3258 y(expanded)i(as)g
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+(Expansion],)f(page)h(25.)154 3386 y(21.)61 b(The)29
+b Ft(time)g Fu(reserv)m(ed)h(w)m(ord)g(ma)m(y)g(b)s(e)g(used)f(b)m(y)h
+(itself)g(as)g(a)h(command.)40 b(When)30 b(used)f(in)g(this)h(w)m(a)m
+(y)-8 b(,)330 3495 y(it)33 b(displa)m(ys)g(timing)g(statistics)h(for)e
+(the)h(shell)g(and)f(its)g(completed)i(c)m(hildren.)47
+b(The)32 b Ft(TIMEFORMAT)330 3605 y Fu(v)-5 b(ariable)31
+b(con)m(trols)h(the)e(format)h(of)g(the)f(timing)h(information.)154
+3733 y(22.)61 b(When)33 b(parsing)g(and)f(expanding)h(a)h($)p
+Fi({)6 b Fu(.)22 b(.)h(.)11 b Fi(})33 b Fu(expansion)g(that)h(app)s
+(ears)f(within)f(double)h(quotes,)330 3842 y(single)42
+b(quotes)g(are)g(no)g(longer)g(sp)s(ecial)g(and)f(cannot)i(b)s(e)e
+(used)g(to)h(quote)g(a)g(closing)h(brace)f(or)330 3952
+y(other)31 b(sp)s(ecial)h(c)m(haracter,)i(unless)c(the)i(op)s(erator)f
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+4189 y(23.)61 b(The)29 b(parser)g(do)s(es)g(not)h(recognize)h
  Ft(time)d Fu(as)i(a)g(reserv)m(ed)f(w)m(ord)g(if)h(the)f(next)h(tok)m
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+(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)26 b Fb(143)150 2208
  y Fe(dump-functions)j(\(\))17 b Fc(:)c(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g
  (:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)
-32 b Fb(148)150 2310 y Fe(dump-macros)c(\(\))7 b Fc(:)14
+32 b Fb(148)150 2296 y Fe(dump-macros)c(\(\))7 b Fc(:)14
  b(:)f(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g
  (:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)22
-b Fb(148)150 2398 y Fe(dump-variables)29 b(\(\))17 b
+b Fb(148)150 2384 y Fe(dump-variables)29 b(\(\))17 b
  Fc(:)c(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g
  (:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)32 b Fb(148)150
-2485 y Fe(dynamic-complete-history)f(\(M-TAB\))13 b Fc(:)i(:)e(:)g(:)g
-(:)g(:)g(:)g(:)g(:)h(:)27 b Fb(146)146 2749 y Fs(E)150
-2868 y Fe(edit-and-execute-command)k(\(C-x)c(C-e\))14
-b Fc(:)g(:)f(:)g(:)g(:)h(:)f(:)g(:)29 b Fb(149)150 2956
+2471 y Fe(dynamic-complete-history)f(\(M-TAB\))13 b Fc(:)i(:)e(:)g(:)g
+(:)g(:)g(:)g(:)g(:)h(:)27 b Fb(146)146 2728 y Fs(E)150
+2845 y Fe(edit-and-execute-command)k(\(C-x)c(C-e\))14
+b Fc(:)g(:)f(:)g(:)g(:)h(:)f(:)g(:)29 b Fb(149)150 2933
  y Fe(end-kbd-macro)g(\(C-x)d(\)\))13 b Fc(:)h(:)f(:)g(:)g(:)h(:)f(:)g
  (:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)28
-b Fb(146)150 3044 y Fd(end-of-file)g Fe(\(usually)g(C-d\))21
+b Fb(146)150 3021 y Fd(end-of-file)g Fe(\(usually)g(C-d\))21
  b Fc(:)13 b(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g
-(:)g(:)35 b Fb(142)150 3132 y Fe(end-of-history)29 b(\(M->\))9
+(:)g(:)35 b Fb(142)150 3109 y Fe(end-of-history)29 b(\(M->\))9
  b Fc(:)14 b(:)f(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g
-(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)24 b Fb(140)150 3220 y
+(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)24 b Fb(140)150 3196 y
  Fe(end-of-line)k(\(C-e\))17 b Fc(:)d(:)f(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)
  g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)32
-b Fb(139)150 3308 y Fe(exchange-point-and-mark)f(\(C-x)26
+b Fb(139)150 3284 y Fe(exchange-point-and-mark)f(\(C-x)26
  b(C-x\))17 b Fc(:)d(:)g(:)f(:)g(:)g(:)g(:)g(:)g(:)32
-b Fb(147)146 3571 y Fs(F)150 3690 y Fe(fetch-history)d(\(\))19
-b Fc(:)14 b(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g
-(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)34 b Fb(142)150
-3778 y Fe(forward-backward-delete-char)e(\(\))15 b Fc(:)f(:)f(:)g(:)g
-(:)g(:)g(:)h(:)f(:)g(:)g(:)30 b Fb(142)150 3867 y Fe(forward-char)e
-(\(C-f\))14 b Fc(:)h(:)e(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)
-h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)29 b
-Fb(139)150 3955 y Fe(forward-search-history)i(\(C-s\))24
+b Fb(147)150 3371 y Fe(execute-named-command)e(\(M-x\))8
+b Fc(:)15 b(:)e(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)
+23 b Fb(149)146 3618 y Fs(F)150 3736 y Fe(fetch-history)29
+b(\(\))19 b Fc(:)14 b(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g
+(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)34
+b Fb(142)150 3823 y Fe(forward-backward-delete-char)e(\(\))15
+b Fc(:)f(:)f(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)30 b Fb(142)150
+3911 y Fe(forward-char)e(\(C-f\))14 b Fc(:)h(:)e(:)g(:)g(:)g(:)h(:)f(:)
+g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g
+(:)29 b Fb(139)150 3999 y Fe(forward-search-history)i(\(C-s\))24
  b Fc(:)13 b(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)38
-b Fb(140)150 4042 y Fe(forward-word)28 b(\(M-f\))14 b
+b Fb(140)150 4086 y Fe(forward-word)28 b(\(M-f\))14 b
  Fc(:)h(:)e(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g
-(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)29 b Fb(139)146 4295
-y Fs(G)150 4414 y Fe(glob-complete-word)h(\(M-g\))16
+(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)29 b Fb(139)146 4333
+y Fs(G)150 4450 y Fe(glob-complete-word)h(\(M-g\))16
  b Fc(:)e(:)f(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)
-g(:)g(:)31 b Fb(148)150 4502 y Fe(glob-expand-word)e(\(C-x)e(*\))c
+g(:)g(:)31 b Fb(148)150 4538 y Fe(glob-expand-word)e(\(C-x)e(*\))c
  Fc(:)13 b(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g
-(:)g(:)g(:)38 b Fb(148)150 4590 y Fe(glob-list-expansions)30
+(:)g(:)g(:)38 b Fb(148)150 4625 y Fe(glob-list-expansions)30
  b(\(C-x)d(g\))13 b Fc(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g
  (:)g(:)h(:)27 b Fb(148)2021 294 y Fs(H)2025 422 y Fe
  (history-and-alias-expand-line)32 b(\(\))13 b Fc(:)g(:)g(:)h(:)f(:)g(:)
@@ -23018,7 +23100,7 @@ g(:)g(:)g(:)g(:)g(:)g(:)26 b Fb(3)150 2348 y(pro)r(cess)h(substitution)
  (:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)25 b Fb(35)150
  2435 y(programmable)i(completion)8 b Fc(:)14 b(:)g(:)f(:)g(:)g(:)g(:)g
  (:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)23
-b Fb(149)150 2522 y(prompting)15 b Fc(:)e(:)g(:)g(:)g(:)h(:)f(:)g(:)g
+b Fb(150)150 2522 y(prompting)15 b Fc(:)e(:)g(:)g(:)g(:)h(:)f(:)g(:)g
  (:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)
  g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)30 b Fb(107)146
  2765 y Fs(Q)150 2881 y Fb(quoting)16 b Fc(:)d(:)g(:)g(:)g(:)g(:)h(:)f
@@ -23065,7 +23147,7 @@ b(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g
  (:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)21
  b Fb(46)2025 1046 y(sp)r(ecial)27 b(builtin)16 b Fc(:)d(:)g(:)g(:)g(:)g
  (:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)
-g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)31 b Fb(4,)26 b(79)2025
+g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)31 b Fb(4,)26 b(80)2025
  1136 y(startup)f(\014les)10 b Fc(:)k(:)f(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)
  g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)g(:)h(:)f(:)g(:)g(:)g(:)g
  (:)g(:)h(:)f(:)g(:)g(:)g(:)g(:)g(:)25 b Fb(96)2025 1226
diff --git a/doc/builtins.0 b/doc/builtins.0

index 84d52c36262e7847083331c2c6c1a6700b63e062..6cdefaf284c874332647d1fd2f3cc32f31f513dc 100644 (file)
--- a/doc/builtins.0
+++ b/doc/builtins.0
@@ -78,11 +78,11 @@ B\bBA\bAS\bSH\bH B\bBU\bUI\bIL\bLT\bTI\bIN\bN C\bCO\bOM\bMM\bMA\bAN\bND\bDS\bS
                variable.  Each non-option argument is a command as it would ap-
                pear  in  a  r\bre\bea\bad\bdl\bli\bin\bne\be  initialization file such as _\b._\bi_\bn_\bp_\bu_\bt_\br_\bc, but
                each binding or command must be passed as a  separate  argument;
-              e.g.,  '"\C-x\C-r":  re-read-init-file'.   In  the following de-
-              scriptions, output available to be re-read is formatted as  com-
-              mands  that  would  appear  in a r\bre\bea\bad\bdl\bli\bin\bne\be initialization file or
-              that would be supplied as individual arguments to  a  b\bbi\bin\bnd\bd  com-
-              mand.  Options, if supplied, have the following meanings:
+              e.g.,  \C-x\C-r:  re-read-init-file.   In the following descrip-
+              tions, output available to be re-read is formatted  as  commands
+              that  would  appear  in  a  r\bre\bea\bad\bdl\bli\bin\bne\be initialization file or that
+              would be supplied as individual arguments  to  a  b\bbi\bin\bnd\bd  command.
+              Options, if supplied, have the following meanings:
                -\b-m\bm _\bk_\be_\by_\bm_\ba_\bp
                       Use _\bk_\be_\by_\bm_\ba_\bp as the keymap to be affected by the subsequent
                       bindings.  Acceptable _\bk_\be_\by_\bm_\ba_\bp names are _\be_\bm_\ba_\bc_\bs_\b, _\be_\bm_\ba_\bc_\bs_\b-_\bs_\bt_\ba_\bn_\b-
@@ -960,7 +960,7 @@ B\bBA\bAS\bSH\bH B\bBU\bUI\bIL\bLT\bTI\bIN\bN C\bCO\bOM\bMM\bMA\bAN\bND\bDS\bS
                       corresponding _\ba_\br_\bg_\bu_\bm_\be_\bn_\bt in the same way as e\bec\bch\bho\bo -\b-e\be.
                %\b%q\bq     causes p\bpr\bri\bin\bnt\btf\bf to output the corresponding _\ba_\br_\bg_\bu_\bm_\be_\bn_\bt  in  a
                       format  that can be reused as shell input.  %\b%q\bq and %\b%Q\bQ use
-                     the $\b$'\b''\b' quoting style if any characters in  the  argument
+                     the $\b$ quoting style if any  characters  in  the  argument
                       string  require  it, and backslash quoting otherwise.  If
                       the format string uses the _\bp_\br_\bi_\bn_\bt_\bf alternate  form,  these
                       two  formats  quote  the  argument  string  using  single
@@ -1536,40 +1536,40 @@ B\bBA\bAS\bSH\bH B\bBU\bUI\bIL\bLT\bTI\bIN\bN C\bCO\bOM\bMM\bMA\bAN\bND\bDS\bS
                        in _\bb_\ba_\bs_\bh(1) under P\bPa\bat\bth\bhn\bna\bam\bme\be E\bEx\bxp\bpa\ban\bns\bsi\bio\bon\bn are enabled.
  
                e\bex\bxt\btq\bqu\buo\bot\bte\be
-                      If set, $\b$'_\bs_\bt_\br_\bi_\bn_\bg' and  $\b$"_\bs_\bt_\br_\bi_\bn_\bg"  quoting  is  performed
-                      within   $\b${\b{_\bp_\ba_\br_\ba_\bm_\be_\bt_\be_\br}\b}   expansions  enclosed  in  double
-                      quotes.  This option is enabled by default.
+                      If set, $\b$_\bs_\bt_\br_\bi_\bn_\bg and $\b$_\bs_\bt_\br_\bi_\bn_\bg quoting is performed  within
+                      $\b${\b{_\bp_\ba_\br_\ba_\bm_\be_\bt_\be_\br}\b} expansions enclosed in double quotes.  This
+                      option is enabled by default.
  
                f\bfa\bai\bil\blg\bgl\blo\bob\bb
-                      If set, patterns which fail to  match  filenames  during
+                      If  set,  patterns  which fail to match filenames during
                        pathname expansion result in an expansion error.
  
                f\bfo\bor\brc\bce\be_\b_f\bfi\big\bgn\bno\bor\bre\be
-                      If  set,  the  suffixes  specified  by the F\bFI\bIG\bGN\bNO\bOR\bRE\bE shell
-                      variable cause words to be ignored when performing  word
+                      If set, the suffixes  specified  by  the  F\bFI\bIG\bGN\bNO\bOR\bRE\bE  shell
+                      variable  cause words to be ignored when performing word
                        completion even if the ignored words are the only possi-
-                      ble  completions.   See S\bSH\bHE\bEL\bLL\bL V\bVA\bAR\bRI\bIA\bAB\bBL\bLE\bES\bS in _\bb_\ba_\bs_\bh(1) for a
-                      description of F\bFI\bIG\bGN\bNO\bOR\bRE\bE.  This option is enabled  by  de-
+                      ble completions.  See S\bSH\bHE\bEL\bLL\bL V\bVA\bAR\bRI\bIA\bAB\bBL\bLE\bES\bS in _\bb_\ba_\bs_\bh(1)  for  a
+                      description  of  F\bFI\bIG\bGN\bNO\bOR\bRE\bE.  This option is enabled by de-
                        fault.
  
                g\bgl\blo\bob\bba\bas\bsc\bci\bii\bir\bra\ban\bng\bge\bes\bs
-                      If  set,  range  expressions  used  in  pattern matching
-                      bracket expressions (see P\bPa\bat\btt\bte\ber\brn\bn  M\bMa\bat\btc\bch\bhi\bin\bng\bg  in  _\bb_\ba_\bs_\bh(1))
+                      If set,  range  expressions  used  in  pattern  matching
+                      bracket  expressions  (see  P\bPa\bat\btt\bte\ber\brn\bn M\bMa\bat\btc\bch\bhi\bin\bng\bg in _\bb_\ba_\bs_\bh(1))
                        behave as if in the traditional C locale when performing
-                      comparisons.   That  is,  the current locale's collating
-                      sequence is not taken into account, so b\bb will  not  col-
-                      late  between  A\bA  and  B\bB,  and upper-case and lower-case
+                      comparisons.  That is, the  current  locale's  collating
+                      sequence  is  not taken into account, so b\bb will not col-
+                      late between A\bA and  B\bB,  and  upper-case  and  lower-case
                        ASCII characters will collate together.
  
                g\bgl\blo\bob\bbs\bsk\bki\bip\bpd\bdo\bot\bts\bs
-                      If set, pathname expansion will never  match  the  file-
-                      names  and even if the pattern begins with a This option
+                      If  set,  pathname  expansion will never match the file-
+                      names and even if the pattern begins with a This  option
                        is enabled by default.
  
                g\bgl\blo\bob\bbs\bst\bta\bar\br
                        If set, the pattern *\b**\b* used in a pathname expansion con-
-                      text will match all files and zero or  more  directories
-                      and  subdirectories.  If the pattern is followed by a /\b/,
+                      text  will  match all files and zero or more directories
+                      and subdirectories.  If the pattern is followed by a  /\b/,
                        only directories and subdirectories match.
  
                g\bgn\bnu\bu_\b_e\ber\brr\brf\bfm\bmt\bt
@@ -1577,25 +1577,25 @@ B\bBA\bAS\bSH\bH B\bBU\bUI\bIL\bLT\bTI\bIN\bN C\bCO\bOM\bMM\bMA\bAN\bND\bDS\bS
                        GNU error message format.
  
                h\bhi\bis\bst\bta\bap\bpp\bpe\ben\bnd\bd
-                      If set, the history list is appended to the  file  named
+                      If  set,  the history list is appended to the file named
                        by the value of the H\bHI\bIS\bST\bTF\bFI\bIL\bLE\bE variable when the shell ex-
                        its, rather than overwriting the file.
  
                h\bhi\bis\bst\btr\bre\bee\bed\bdi\bit\bt
-                      If  set, and r\bre\bea\bad\bdl\bli\bin\bne\be is being used, a user is given the
+                      If set, and r\bre\bea\bad\bdl\bli\bin\bne\be is being used, a user is given  the
                        opportunity to re-edit a failed history substitution.
  
                h\bhi\bis\bst\btv\bve\ber\bri\bif\bfy\by
-                      If set, and r\bre\bea\bad\bdl\bli\bin\bne\be is being used, the results of  his-
-                      tory  substitution  are  not  immediately  passed to the
-                      shell parser.  Instead, the  resulting  line  is  loaded
+                      If  set, and r\bre\bea\bad\bdl\bli\bin\bne\be is being used, the results of his-
+                      tory substitution are  not  immediately  passed  to  the
+                      shell  parser.   Instead,  the  resulting line is loaded
                        into the r\bre\bea\bad\bdl\bli\bin\bne\be editing buffer, allowing further modi-
                        fication.
  
                h\bho\bos\bst\btc\bco\bom\bmp\bpl\ble\bet\bte\be
                        If set, and r\bre\bea\bad\bdl\bli\bin\bne\be is being used, b\bba\bas\bsh\bh will attempt to
-                      perform  hostname  completion when a word containing a @\b@
-                      is being completed (see  C\bCo\bom\bmp\bpl\ble\bet\bti\bin\bng\bg  under  R\bRE\bEA\bAD\bDL\bLI\bIN\bNE\bE  in
+                      perform hostname completion when a word containing  a  @\b@
+                      is  being  completed  (see  C\bCo\bom\bmp\bpl\ble\bet\bti\bin\bng\bg under R\bRE\bEA\bAD\bDL\bLI\bIN\bNE\bE in
                        _\bb_\ba_\bs_\bh(1)).  This is enabled by default.
  
                h\bhu\bup\bpo\bon\bne\bex\bxi\bit\bt
@@ -1603,23 +1603,23 @@ B\bBA\bAS\bSH\bH B\bBU\bUI\bIL\bLT\bTI\bIN\bN C\bCO\bOM\bMM\bMA\bAN\bND\bDS\bS
                        active login shell exits.
  
                i\bin\bnh\bhe\ber\bri\bit\bt_\b_e\ber\brr\bre\bex\bxi\bit\bt
-                      If  set,  command substitution inherits the value of the
-                      e\ber\brr\bre\bex\bxi\bit\bt option, instead of unsetting it in the  subshell
-                      environment.   This option is enabled when _\bp_\bo_\bs_\bi_\bx _\bm_\bo_\bd_\be is
+                      If set, command substitution inherits the value  of  the
+                      e\ber\brr\bre\bex\bxi\bit\bt  option, instead of unsetting it in the subshell
+                      environment.  This option is enabled when _\bp_\bo_\bs_\bi_\bx _\bm_\bo_\bd_\be  is
                        enabled.
  
                i\bin\bnt\bte\ber\bra\bac\bct\bti\biv\bve\be_\b_c\bco\bom\bmm\bme\ben\bnt\bts\bs
                        If set, allow a word beginning with #\b# to cause that word
-                      and all remaining characters on that line to be  ignored
+                      and  all remaining characters on that line to be ignored
                        in an interactive shell (see C\bCO\bOM\bMM\bME\bEN\bNT\bTS\bS in _\bb_\ba_\bs_\bh(1)).  This
                        option is enabled by default.
  
                l\bla\bas\bst\btp\bpi\bip\bpe\be
-                      If  set,  and  job control is not active, the shell runs
+                      If set, and job control is not active,  the  shell  runs
                        the last command of a pipeline not executed in the back-
                        ground in the current shell environment.
  
-              l\bli\bit\bth\bhi\bis\bst\bt If set, and the c\bcm\bmd\bdh\bhi\bis\bst\bt option  is  enabled,  multi-line
+              l\bli\bit\bth\bhi\bis\bst\bt If  set,  and  the c\bcm\bmd\bdh\bhi\bis\bst\bt option is enabled, multi-line
                        commands are saved to the history with embedded newlines
                        rather than using semicolon separators where possible.
  
@@ -1630,125 +1630,125 @@ B\bBA\bAS\bSH\bH B\bBU\bUI\bIL\bLT\bTI\bIN\bN C\bCO\bOM\bMM\bMA\bAN\bND\bDS\bS
                        tribute is not inherited.
  
                l\blo\boc\bca\bal\blv\bva\bar\br_\b_u\bun\bns\bse\bet\bt
-                      If  set,  calling  u\bun\bns\bse\bet\bt  on local variables in previous
-                      function scopes marks them so  subsequent  lookups  find
-                      them  unset until that function returns. This is identi-
-                      cal to the behavior of unsetting local variables at  the
+                      If set, calling u\bun\bns\bse\bet\bt on  local  variables  in  previous
+                      function  scopes  marks  them so subsequent lookups find
+                      them unset until that function returns. This is  identi-
+                      cal  to the behavior of unsetting local variables at the
                        current function scope.
  
                l\blo\bog\bgi\bin\bn_\b_s\bsh\bhe\bel\bll\bl
-                      The  shell  sets this option if it is started as a login
+                      The shell sets this option if it is started as  a  login
                        shell (see I\bIN\bNV\bVO\bOC\bCA\bAT\bTI\bIO\bON\bN in _\bb_\ba_\bs_\bh(1)).  The value may not be
                        changed.
  
                m\bma\bai\bil\blw\bwa\bar\brn\bn
-                      If set, and a file that b\bba\bas\bsh\bh is checking  for  mail  has
-                      been  accessed  since the last time it was checked, b\bba\bas\bsh\bh
+                      If  set,  and  a file that b\bba\bas\bsh\bh is checking for mail has
+                      been accessed since the last time it was  checked,  b\bba\bas\bsh\bh
                        displays the message
  
                n\bno\bo_\b_e\bem\bmp\bpt\bty\by_\b_c\bcm\bmd\bd_\b_c\bco\bom\bmp\bpl\ble\bet\bti\bio\bon\bn
-                      If set, and r\bre\bea\bad\bdl\bli\bin\bne\be is being used, b\bba\bas\bsh\bh  will  not  at-
-                      tempt  to  search the P\bPA\bAT\bTH\bH for possible completions when
+                      If  set,  and  r\bre\bea\bad\bdl\bli\bin\bne\be is being used, b\bba\bas\bsh\bh will not at-
+                      tempt to search the P\bPA\bAT\bTH\bH for possible  completions  when
                        completion is attempted on an empty line.
  
                n\bno\boc\bca\bas\bse\beg\bgl\blo\bob\bb
-                      If set, b\bba\bas\bsh\bh matches  filenames  in  a  case-insensitive
+                      If  set,  b\bba\bas\bsh\bh  matches  filenames in a case-insensitive
                        fashion when performing pathname expansion (see P\bPa\bat\bth\bhn\bna\bam\bme\be
                        E\bEx\bxp\bpa\ban\bns\bsi\bio\bon\bn in _\bb_\ba_\bs_\bh(1)).
  
                n\bno\boc\bca\bas\bse\bem\bma\bat\btc\bch\bh
-                      If  set,  b\bba\bas\bsh\bh  matches  patterns  in a case-insensitive
+                      If set, b\bba\bas\bsh\bh  matches  patterns  in  a  case-insensitive
                        fashion when performing matching while executing c\bca\bas\bse\be or
                        [\b[[\b[ conditional commands, when performing pattern substi-
-                      tution word expansions, or when filtering possible  com-
+                      tution  word expansions, or when filtering possible com-
                        pletions as part of programmable completion.
  
                n\bno\boe\bex\bxp\bpa\ban\bnd\bd_\b_t\btr\bra\ban\bns\bsl\bla\bat\bti\bio\bon\bn
-                      If  set,  b\bba\bas\bsh\bh encloses the translated results of $\b$"\b"..."\b"
-                      quoting in single quotes instead of double  quotes.   If
+                      If set, b\bba\bas\bsh\bh encloses the  translated  results  of  $\b$...
+                      quoting  in  single quotes instead of double quotes.  If
                        the string is not translated, this has no effect.
  
                n\bnu\bul\bll\blg\bgl\blo\bob\bb
                        If set, pathname expansion patterns which match no files
-                      (see  P\bPa\bat\bth\bhn\bna\bam\bme\be  E\bEx\bxp\bpa\ban\bns\bsi\bio\bon\bn  in _\bb_\ba_\bs_\bh(1)) expand to nothing
+                      (see P\bPa\bat\bth\bhn\bna\bam\bme\be E\bEx\bxp\bpa\ban\bns\bsi\bio\bon\bn in _\bb_\ba_\bs_\bh(1))  expand  to  nothing
                        and are removed, rather than expanding to themselves.
  
                p\bpa\bat\bts\bsu\bub\bb_\b_r\bre\bep\bpl\bla\bac\bce\bem\bme\ben\bnt\bt
                        If set, b\bba\bas\bsh\bh expands occurrences of &\b& in the replacement
-                      string of pattern substitution to the  text  matched  by
-                      the  pattern,  as described under P\bPa\bar\bra\bam\bme\bet\bte\ber\br E\bEx\bxp\bpa\ban\bns\bsi\bio\bon\bn in
+                      string  of  pattern  substitution to the text matched by
+                      the pattern, as described under P\bPa\bar\bra\bam\bme\bet\bte\ber\br  E\bEx\bxp\bpa\ban\bns\bsi\bio\bon\bn  in
                        _\bb_\ba_\bs_\bh(1).  This option is enabled by default.
  
                p\bpr\bro\bog\bgc\bco\bom\bmp\bp
                        If set, the programmable completion facilities (see P\bPr\bro\bo-\b-
-                      g\bgr\bra\bam\bmm\bma\bab\bbl\ble\be C\bCo\bom\bmp\bpl\ble\bet\bti\bio\bon\bn in _\bb_\ba_\bs_\bh(1)) are enabled.  This  op-
+                      g\bgr\bra\bam\bmm\bma\bab\bbl\ble\be  C\bCo\bom\bmp\bpl\ble\bet\bti\bio\bon\bn in _\bb_\ba_\bs_\bh(1)) are enabled.  This op-
                        tion is enabled by default.
  
                p\bpr\bro\bog\bgc\bco\bom\bmp\bp_\b_a\bal\bli\bia\bas\bs
-                      If  set,  and  programmable  completion is enabled, b\bba\bas\bsh\bh
-                      treats a command name that doesn't have any  completions
-                      as  a possible alias and attempts alias expansion. If it
-                      has an alias, b\bba\bas\bsh\bh attempts programmable completion  us-
+                      If set, and programmable  completion  is  enabled,  b\bba\bas\bsh\bh
+                      treats  a command name that doesn't have any completions
+                      as a possible alias and attempts alias expansion. If  it
+                      has  an alias, b\bba\bas\bsh\bh attempts programmable completion us-
                        ing the command word resulting from the expanded alias.
  
                p\bpr\bro\bom\bmp\bpt\btv\bva\bar\brs\bs
                        If set, prompt strings undergo parameter expansion, com-
-                      mand  substitution,  arithmetic expansion, and quote re-
-                      moval after being expanded as described in P\bPR\bRO\bOM\bMP\bPT\bTI\bIN\bNG\bG  in
+                      mand substitution, arithmetic expansion, and  quote  re-
+                      moval  after being expanded as described in P\bPR\bRO\bOM\bMP\bPT\bTI\bIN\bNG\bG in
                        _\bb_\ba_\bs_\bh(1).  This option is enabled by default.
  
                r\bre\bes\bst\btr\bri\bic\bct\bte\bed\bd_\b_s\bsh\bhe\bel\bll\bl
-                      The  shell  sets  this  option  if  it is started in re-
-                      stricted mode (see R\bRE\bES\bST\bTR\bRI\bIC\bCT\bTE\bED\bD S\bSH\bHE\bEL\bLL\bL  in  _\bb_\ba_\bs_\bh(1)).   The
-                      value  may  not  be changed.  This is not reset when the
-                      startup files are executed, allowing the  startup  files
+                      The shell sets this option  if  it  is  started  in  re-
+                      stricted  mode  (see  R\bRE\bES\bST\bTR\bRI\bIC\bCT\bTE\bED\bD S\bSH\bHE\bEL\bLL\bL in _\bb_\ba_\bs_\bh(1)).  The
+                      value may not be changed.  This is not  reset  when  the
+                      startup  files  are executed, allowing the startup files
                        to discover whether or not a shell is restricted.
  
                s\bsh\bhi\bif\bft\bt_\b_v\bve\ber\brb\bbo\bos\bse\be
-                      If  set,  the s\bsh\bhi\bif\bft\bt builtin prints an error message when
+                      If set, the s\bsh\bhi\bif\bft\bt builtin prints an error  message  when
                        the shift count exceeds the number of positional parame-
                        ters.
  
                s\bso\bou\bur\brc\bce\bep\bpa\bat\bth\bh
                        If set, the .\b. (s\bso\bou\bur\brc\bce\be) builtin uses the value of P\bPA\bAT\bTH\bH to
-                      find the directory containing the file  supplied  as  an
+                      find  the  directory  containing the file supplied as an
                        argument.  This option is enabled by default.
  
                v\bva\bar\brr\bre\bed\bdi\bir\br_\b_c\bcl\blo\bos\bse\be
-                      If  set, the shell automatically closes file descriptors
-                      assigned using the  _\b{_\bv_\ba_\br_\bn_\ba_\bm_\be_\b}  redirection  syntax  (see
-                      R\bRE\bED\bDI\bIR\bRE\bEC\bCT\bTI\bIO\bON\bN  in  _\bb_\ba_\bs_\bh(1))  instead  of leaving them open
+                      If set, the shell automatically closes file  descriptors
+                      assigned  using  the  _\b{_\bv_\ba_\br_\bn_\ba_\bm_\be_\b}  redirection syntax (see
+                      R\bRE\bED\bDI\bIR\bRE\bEC\bCT\bTI\bIO\bON\bN in _\bb_\ba_\bs_\bh(1)) instead  of  leaving  them  open
                        when the command completes.
  
                x\bxp\bpg\bg_\b_e\bec\bch\bho\bo
-                      If set, the e\bec\bch\bho\bo builtin  expands  backslash-escape  se-
-                      quences  by  default.  If the p\bpo\bos\bsi\bix\bx shell option is also
+                      If  set,  the  e\bec\bch\bho\bo builtin expands backslash-escape se-
+                      quences by default.  If the p\bpo\bos\bsi\bix\bx shell option  is  also
                        enabled, e\bec\bch\bho\bo does not interpret any options.
  
         s\bsu\bus\bsp\bpe\ben\bnd\bd [-\b-f\bf]
-              Suspend the execution of this shell until it receives a  S\bSI\bIG\bGC\bCO\bON\bNT\bT
-              signal.   A login shell, or a shell without job control enabled,
-              cannot be suspended; the -\b-f\bf option can be used to override  this
-              and  force  the  suspension.   The return status is 0 unless the
-              shell is a login shell or job control is not enabled and  -\b-f\bf  is
+              Suspend  the execution of this shell until it receives a S\bSI\bIG\bGC\bCO\bON\bNT\bT
+              signal.  A login shell, or a shell without job control  enabled,
+              cannot  be suspended; the -\b-f\bf option can be used to override this
+              and force the suspension.  The return status  is  0  unless  the
+              shell  is  a login shell or job control is not enabled and -\b-f\bf is
                not supplied.
  
         t\bte\bes\bst\bt _\be_\bx_\bp_\br
         [\b[ _\be_\bx_\bp_\br ]\b]
                Return a status of 0 (true) or 1 (false) depending on the evalu-
-              ation  of  the  conditional  expression _\be_\bx_\bp_\br.  Each operator and
-              operand must be a separate argument.  Expressions  are  composed
-              of  the primaries described in _\bb_\ba_\bs_\bh(1) under C\bCO\bON\bND\bDI\bIT\bTI\bIO\bON\bNA\bAL\bL E\bEX\bXP\bPR\bRE\bES\bS-\b-
+              ation of the conditional expression  _\be_\bx_\bp_\br.   Each  operator  and
+              operand  must  be a separate argument.  Expressions are composed
+              of the primaries described in _\bb_\ba_\bs_\bh(1) under C\bCO\bON\bND\bDI\bIT\bTI\bIO\bON\bNA\bAL\bL  E\bEX\bXP\bPR\bRE\bES\bS-\b-
                S\bSI\bIO\bON\bNS\bS.  t\bte\bes\bst\bt does not accept any options, nor does it accept and
                ignore an argument of -\b--\b- as signifying the end of options.
  
-              Expressions may  be  combined  using  the  following  operators,
-              listed  in  decreasing  order of precedence.  The evaluation de-
-              pends on the number of arguments; see  below.   Operator  prece-
+              Expressions  may  be  combined  using  the  following operators,
+              listed in decreasing order of precedence.   The  evaluation  de-
+              pends  on  the  number of arguments; see below.  Operator prece-
                dence is used when there are five or more arguments.
                !\b! _\be_\bx_\bp_\br True if _\be_\bx_\bp_\br is false.
                (\b( _\be_\bx_\bp_\br )\b)
-                     Returns  the value of _\be_\bx_\bp_\br.  This may be used to override
+                     Returns the value of _\be_\bx_\bp_\br.  This may be used to  override
                       the normal precedence of operators.
                _\be_\bx_\bp_\br_\b1 -a\ba _\be_\bx_\bp_\br_\b2
                       True if both _\be_\bx_\bp_\br_\b1 and _\be_\bx_\bp_\br_\b2 are true.
@@ -1765,161 +1765,161 @@ B\bBA\bAS\bSH\bH B\bBU\bUI\bIL\bLT\bTI\bIN\bN C\bCO\bOM\bMM\bMA\bAN\bND\bDS\bS
                       null.
                2 arguments
                       If the first argument is !\b!, the expression is true if and
-                     only if the second argument is null.  If the first  argu-
-                     ment  is one of the unary conditional operators listed in
-                     _\bb_\ba_\bs_\bh(1) under C\bCO\bON\bND\bDI\bIT\bTI\bIO\bON\bNA\bAL\bL E\bEX\bXP\bPR\bRE\bES\bSS\bSI\bIO\bON\bNS\bS, the expression  is
+                     only  if the second argument is null.  If the first argu-
+                     ment is one of the unary conditional operators listed  in
+                     _\bb_\ba_\bs_\bh(1)  under C\bCO\bON\bND\bDI\bIT\bTI\bIO\bON\bNA\bAL\bL E\bEX\bXP\bPR\bRE\bES\bSS\bSI\bIO\bON\bNS\bS, the expression is
                       true if the unary test is true.  If the first argument is
                       not a valid unary conditional operator, the expression is
                       false.
                3 arguments
                       The following conditions are applied in the order listed.
-                     If  the  second argument is one of the binary conditional
-                     operators listed in  _\bb_\ba_\bs_\bh(1)  under  C\bCO\bON\bND\bDI\bIT\bTI\bIO\bON\bNA\bAL\bL  E\bEX\bXP\bPR\bRE\bES\bS-\b-
-                     S\bSI\bIO\bON\bNS\bS,  the result of the expression is the result of the
-                     binary test  using  the  first  and  third  arguments  as
-                     operands.   The -\b-a\ba and -\b-o\bo operators are considered binary
-                     operators when there are three arguments.  If  the  first
+                     If the second argument is one of the  binary  conditional
+                     operators  listed  in  _\bb_\ba_\bs_\bh(1)  under C\bCO\bON\bND\bDI\bIT\bTI\bIO\bON\bNA\bAL\bL E\bEX\bXP\bPR\bRE\bES\bS-\b-
+                     S\bSI\bIO\bON\bNS\bS, the result of the expression is the result of  the
+                     binary  test  using  the  first  and  third  arguments as
+                     operands.  The -\b-a\ba and -\b-o\bo operators are considered  binary
+                     operators  when  there are three arguments.  If the first
                       argument is !\b!, the value is the negation of the two-argu-
-                     ment  test  using the second and third arguments.  If the
+                     ment test using the second and third arguments.   If  the
                       first argument is exactly (\b( and the third argument is ex-
-                     actly )\b), the result is the one-argument test of the  sec-
+                     actly  )\b), the result is the one-argument test of the sec-
                       ond argument.  Otherwise, the expression is false.
                4 arguments
                       The following conditions are applied in the order listed.
                       If the first argument is !\b!, the result is the negation of
-                     the  three-argument  expression composed of the remaining
-                     arguments.  the two-argument test using  the  second  and
-                     third  arguments.  If the first argument is exactly (\b( and
-                     the fourth argument is exactly )\b), the result is the  two-
-                     argument  test of the second and third arguments.  Other-
+                     the three-argument expression composed of  the  remaining
+                     arguments.   the  two-argument  test using the second and
+                     third arguments.  If the first argument is exactly (\b(  and
+                     the  fourth argument is exactly )\b), the result is the two-
+                     argument test of the second and third arguments.   Other-
                       wise, the expression is parsed and evaluated according to
                       precedence using the rules listed above.
                5 or more arguments
-                     The expression  is  parsed  and  evaluated  according  to
+                     The  expression  is  parsed  and  evaluated  according to
                       precedence using the rules listed above.
  
                When the shell is in _\bp_\bo_\bs_\bi_\bx _\bm_\bo_\bd_\be, or if the expression is part of
                the [\b[[\b[ command, the <\b< and >\b> operators sort using the current lo-
-              cale.   If  the  shell is not in _\bp_\bo_\bs_\bi_\bx _\bm_\bo_\bd_\be, the t\bte\bes\bst\bt and [\b[ com-
+              cale.  If the shell is not in _\bp_\bo_\bs_\bi_\bx _\bm_\bo_\bd_\be, the t\bte\bes\bst\bt  and  [\b[  com-
                mands sort lexicographically using ASCII ordering.
  
-       t\bti\bim\bme\bes\bs  Print the accumulated user and system times for  the  shell  and
+       t\bti\bim\bme\bes\bs  Print  the  accumulated  user and system times for the shell and
                for processes run from the shell.  The return status is 0.
  
         t\btr\bra\bap\bp [-\b-l\blp\bp] [[_\ba_\bc_\bt_\bi_\bo_\bn] _\bs_\bi_\bg_\bs_\bp_\be_\bc ...]
                The _\ba_\bc_\bt_\bi_\bo_\bn is a command that is read and executed when the shell
                receives signal(s) _\bs_\bi_\bg_\bs_\bp_\be_\bc.  If _\ba_\bc_\bt_\bi_\bo_\bn is absent (and there is a
-              single  _\bs_\bi_\bg_\bs_\bp_\be_\bc)  or  -\b-,  each  specified signal is reset to its
-              original disposition (the value it  had  upon  entrance  to  the
-              shell).   If  _\ba_\bc_\bt_\bi_\bo_\bn  is the null string the signal specified by
-              each _\bs_\bi_\bg_\bs_\bp_\be_\bc is ignored by the shell and by the commands it  in-
+              single _\bs_\bi_\bg_\bs_\bp_\be_\bc) or -\b-, each specified  signal  is  reset  to  its
+              original  disposition  (the  value  it  had upon entrance to the
+              shell).  If _\ba_\bc_\bt_\bi_\bo_\bn is the null string the  signal  specified  by
+              each  _\bs_\bi_\bg_\bs_\bp_\be_\bc is ignored by the shell and by the commands it in-
                vokes.
  
-              If  no arguments are supplied, t\btr\bra\bap\bp displays the actions associ-
+              If no arguments are supplied, t\btr\bra\bap\bp displays the actions  associ-
                ated with each trapped signal as a set of t\btr\bra\bap\bp commands that can
-              be reused as shell input to restore the current signal  disposi-
-              tions.   If  -\b-p\bp  is  given, and _\ba_\bc_\bt_\bi_\bo_\bn is not present, then t\btr\bra\bap\bp
-              displays the actions associated with each _\bs_\bi_\bg_\bs_\bp_\be_\bc  or,  if  none
+              be  reused as shell input to restore the current signal disposi-
+              tions.  If -\b-p\bp is given, and _\ba_\bc_\bt_\bi_\bo_\bn is  not  present,  then  t\btr\bra\bap\bp
+              displays  the  actions  associated with each _\bs_\bi_\bg_\bs_\bp_\be_\bc or, if none
                are supplied, for all trapped signals, as a set of t\btr\bra\bap\bp commands
-              that  can be reused as shell input to restore the current signal
-              dispositions.  The -\b-P\bP option  behaves  similarly,  but  displays
-              only  the actions associated with each _\bs_\bi_\bg_\bs_\bp_\be_\bc argument.  -\b-P\bP re-
-              quires at least one _\bs_\bi_\bg_\bs_\bp_\be_\bc argument.  The -\b-P\bP or -\b-p\bp  options  to
-              t\btr\bra\bap\bp  may  be used in a subshell environment (e.g., command sub-
-              stitution) and, as long as they are used before t\btr\bra\bap\bp is used  to
-              change  a  signal's handling, will display the state of its par-
+              that can be reused as shell input to restore the current  signal
+              dispositions.   The  -\b-P\bP  option  behaves similarly, but displays
+              only the actions associated with each _\bs_\bi_\bg_\bs_\bp_\be_\bc argument.  -\b-P\bP  re-
+              quires  at  least one _\bs_\bi_\bg_\bs_\bp_\be_\bc argument.  The -\b-P\bP or -\b-p\bp options to
+              t\btr\bra\bap\bp may be used in a subshell environment (e.g.,  command  sub-
+              stitution)  and, as long as they are used before t\btr\bra\bap\bp is used to
+              change a signal's handling, will display the state of  its  par-
                ent's traps.
  
-              The -\b-l\bl option causes t\btr\bra\bap\bp to print a list of  signal  names  and
-              their  corresponding  numbers.   Each _\bs_\bi_\bg_\bs_\bp_\be_\bc is either a signal
-              name defined in <_\bs_\bi_\bg_\bn_\ba_\bl_\b._\bh>, or a signal  number.   Signal  names
+              The  -\b-l\bl  option  causes t\btr\bra\bap\bp to print a list of signal names and
+              their corresponding numbers.  Each _\bs_\bi_\bg_\bs_\bp_\be_\bc is  either  a  signal
+              name  defined  in  <_\bs_\bi_\bg_\bn_\ba_\bl_\b._\bh>, or a signal number.  Signal names
                are case insensitive and the S\bSI\bIG\bG prefix is optional.
  
-              If  a _\bs_\bi_\bg_\bs_\bp_\be_\bc is E\bEX\bXI\bIT\bT (0) the command _\ba_\bc_\bt_\bi_\bo_\bn is executed on exit
-              from the shell.  If a _\bs_\bi_\bg_\bs_\bp_\be_\bc is D\bDE\bEB\bBU\bUG\bG, the  command  _\ba_\bc_\bt_\bi_\bo_\bn  is
+              If a _\bs_\bi_\bg_\bs_\bp_\be_\bc is E\bEX\bXI\bIT\bT (0) the command _\ba_\bc_\bt_\bi_\bo_\bn is executed on  exit
+              from  the  shell.   If a _\bs_\bi_\bg_\bs_\bp_\be_\bc is D\bDE\bEB\bBU\bUG\bG, the command _\ba_\bc_\bt_\bi_\bo_\bn is
                executed before every _\bs_\bi_\bm_\bp_\bl_\be _\bc_\bo_\bm_\bm_\ba_\bn_\bd, _\bf_\bo_\br command, _\bc_\ba_\bs_\be command,
-              _\bs_\be_\bl_\be_\bc_\bt  command,  (( arithmetic command, [[ conditional command,
+              _\bs_\be_\bl_\be_\bc_\bt command, (( arithmetic command, [[  conditional  command,
                arithmetic _\bf_\bo_\br command, and before the first command executes in
-              a shell function (see S\bSH\bHE\bEL\bLL\bL G\bGR\bRA\bAM\bMM\bMA\bAR\bR in _\bb_\ba_\bs_\bh(1)).  Refer  to  the
-              description  of the e\bex\bxt\btd\bde\beb\bbu\bug\bg option to the s\bsh\bho\bop\bpt\bt builtin for de-
-              tails of its effect on the D\bDE\bEB\bBU\bUG\bG trap.  If a _\bs_\bi_\bg_\bs_\bp_\be_\bc is  R\bRE\bET\bTU\bUR\bRN\bN,
-              the  command  _\ba_\bc_\bt_\bi_\bo_\bn is executed each time a shell function or a
-              script executed with the .\b. or s\bso\bou\bur\brc\bce\be builtins  finishes  execut-
+              a  shell  function (see S\bSH\bHE\bEL\bLL\bL G\bGR\bRA\bAM\bMM\bMA\bAR\bR in _\bb_\ba_\bs_\bh(1)).  Refer to the
+              description of the e\bex\bxt\btd\bde\beb\bbu\bug\bg option to the s\bsh\bho\bop\bpt\bt builtin for  de-
+              tails  of its effect on the D\bDE\bEB\bBU\bUG\bG trap.  If a _\bs_\bi_\bg_\bs_\bp_\be_\bc is R\bRE\bET\bTU\bUR\bRN\bN,
+              the command _\ba_\bc_\bt_\bi_\bo_\bn is executed each time a shell function  or  a
+              script  executed  with the .\b. or s\bso\bou\bur\brc\bce\be builtins finishes execut-
                ing.
  
-              If  a  _\bs_\bi_\bg_\bs_\bp_\be_\bc is E\bER\bRR\bR, the command _\ba_\bc_\bt_\bi_\bo_\bn is executed whenever a
+              If a _\bs_\bi_\bg_\bs_\bp_\be_\bc is E\bER\bRR\bR, the command _\ba_\bc_\bt_\bi_\bo_\bn is executed  whenever  a
                pipeline (which may consist of a single simple command), a list,
                or a compound command returns a non-zero exit status, subject to
-              the following conditions.  The E\bER\bRR\bR trap is not executed  if  the
+              the  following  conditions.  The E\bER\bRR\bR trap is not executed if the
                failed command is part of the command list immediately following
-              a  w\bwh\bhi\bil\ble\be  or u\bun\bnt\bti\bil\bl keyword, part of the test in an _\bi_\bf statement,
+              a w\bwh\bhi\bil\ble\be or u\bun\bnt\bti\bil\bl keyword, part of the test in an  _\bi_\bf  statement,
                part of a command executed in a &\b&&\b& or |\b||\b| list except the command
-              following the final &\b&&\b& or |\b||\b|, any command in a pipeline but  the
-              last,  or  if the command's return value is being inverted using
+              following  the final &\b&&\b& or |\b||\b|, any command in a pipeline but the
+              last, or if the command's return value is being  inverted  using
                !\b!.  These are the same conditions obeyed by the e\ber\brr\bre\bex\bxi\bit\bt (-\b-e\be) op-
                tion.
  
                When the shell is not interactive, signals ignored upon entry to
                the shell cannot be trapped or reset.  Interactive shells permit
                trapping signals ignored on entry.  Trapped signals that are not
-              being ignored are reset to their original values in  a  subshell
-              or  subshell environment when one is created.  The return status
+              being  ignored  are reset to their original values in a subshell
+              or subshell environment when one is created.  The return  status
                is false if any _\bs_\bi_\bg_\bs_\bp_\be_\bc is invalid; otherwise t\btr\bra\bap\bp returns true.
  
         t\btr\bru\bue\be   Does nothing, returns a 0 status.
  
         t\bty\byp\bpe\be [-\b-a\baf\bft\btp\bpP\bP] _\bn_\ba_\bm_\be [_\bn_\ba_\bm_\be ...]
-              With no options, indicate how each _\bn_\ba_\bm_\be would be interpreted  if
+              With  no options, indicate how each _\bn_\ba_\bm_\be would be interpreted if
                used as a command name.  If the -\b-t\bt option is used, t\bty\byp\bpe\be prints a
-              string  which  is  one  of _\ba_\bl_\bi_\ba_\bs, _\bk_\be_\by_\bw_\bo_\br_\bd, _\bf_\bu_\bn_\bc_\bt_\bi_\bo_\bn, _\bb_\bu_\bi_\bl_\bt_\bi_\bn, or
-              _\bf_\bi_\bl_\be if  _\bn_\ba_\bm_\be  is  an  alias,  shell  reserved  word,  function,
-              builtin,  or executable disk file, respectively.  If the _\bn_\ba_\bm_\be is
-              not found, then nothing is printed, and t\bty\byp\bpe\be returns a  non-zero
-              exit  status.  If the -\b-p\bp option is used, t\bty\byp\bpe\be either returns the
-              name of the executable file that would  be  found  by  searching
-              $\b$P\bPA\bAT\bTH\bH  if  _\bn_\ba_\bm_\be  were specified as a command name, or nothing if
-              would not return _\bf_\bi_\bl_\be.  The -\b-P\bP option forces a P\bPA\bAT\bTH\bH  search  for
-              each  _\bn_\ba_\bm_\be,  even  if  would  not  return _\bf_\bi_\bl_\be.  If a command is
+              string which is one of _\ba_\bl_\bi_\ba_\bs,  _\bk_\be_\by_\bw_\bo_\br_\bd,  _\bf_\bu_\bn_\bc_\bt_\bi_\bo_\bn,  _\bb_\bu_\bi_\bl_\bt_\bi_\bn,  or
+              _\bf_\bi_\bl_\be  if  _\bn_\ba_\bm_\be  is  an  alias,  shell  reserved  word, function,
+              builtin, or executable disk file, respectively.  If the _\bn_\ba_\bm_\be  is
+              not  found, then nothing is printed, and t\bty\byp\bpe\be returns a non-zero
+              exit status.  If the -\b-p\bp option is used, t\bty\byp\bpe\be either returns  the
+              name  of  the  executable  file that would be found by searching
+              $\b$P\bPA\bAT\bTH\bH if _\bn_\ba_\bm_\be were specified as a command name,  or  nothing  if
+              would  not  return _\bf_\bi_\bl_\be.  The -\b-P\bP option forces a P\bPA\bAT\bTH\bH search for
+              each _\bn_\ba_\bm_\be, even if would not  return  _\bf_\bi_\bl_\be.   If  a  command  is
                hashed, -\b-p\bp and -\b-P\bP print the hashed value, which is not necessar-
-              ily the file that appears first in P\bPA\bAT\bTH\bH.  If the  -\b-a\ba  option  is
+              ily  the  file  that appears first in P\bPA\bAT\bTH\bH.  If the -\b-a\ba option is
                used, t\bty\byp\bpe\be prints all of the places that contain a command named
-              _\bn_\ba_\bm_\be.   This  includes  aliases,  reserved words, functions, and
-              builtins, but the path search options (-\b-p\bp and -\b-P\bP)  can  be  sup-
+              _\bn_\ba_\bm_\be.  This includes aliases,  reserved  words,  functions,  and
+              builtins,  but  the  path search options (-\b-p\bp and -\b-P\bP) can be sup-
                plied to restrict the output to executable files.  t\bty\byp\bpe\be does not
-              consult  the table of hashed commands when using -\b-a\ba with -\b-p\bp, and
-              only performs a P\bPA\bAT\bTH\bH search for _\bn_\ba_\bm_\be.  The -\b-f\bf option  suppresses
-              shell  function  lookup,  as with the c\bco\bom\bmm\bma\ban\bnd\bd builtin.  t\bty\byp\bpe\be re-
-              turns true if all of the arguments are found, false if  any  are
+              consult the table of hashed commands when using -\b-a\ba with -\b-p\bp,  and
+              only  performs a P\bPA\bAT\bTH\bH search for _\bn_\ba_\bm_\be.  The -\b-f\bf option suppresses
+              shell function lookup, as with the c\bco\bom\bmm\bma\ban\bnd\bd  builtin.   t\bty\byp\bpe\be  re-
+              turns  true  if all of the arguments are found, false if any are
                not found.
  
         u\bul\bli\bim\bmi\bit\bt [-\b-H\bHS\bS] -\b-a\ba
         u\bul\bli\bim\bmi\bit\bt [-\b-H\bHS\bS] [-\b-b\bbc\bcd\bde\bef\bfi\bik\bkl\blm\bmn\bnp\bpq\bqr\brs\bst\btu\buv\bvx\bxP\bPR\bRT\bT [_\bl_\bi_\bm_\bi_\bt]]
-              Provides  control  over the resources available to the shell and
-              to processes started by it, on systems that allow such  control.
+              Provides control over the resources available to the  shell  and
+              to  processes started by it, on systems that allow such control.
                The -\b-H\bH and -\b-S\bS options specify that the hard or soft limit is set
-              for  the  given resource.  A hard limit cannot be increased by a
-              non-root user once it is set; a soft limit may be  increased  up
-              to  the value of the hard limit.  If neither -\b-H\bH nor -\b-S\bS is speci-
+              for the given resource.  A hard limit cannot be increased  by  a
+              non-root  user  once it is set; a soft limit may be increased up
+              to the value of the hard limit.  If neither -\b-H\bH nor -\b-S\bS is  speci-
                fied, both the soft and hard limits are set.  The value of _\bl_\bi_\bm_\bi_\bt
                can be a number in the unit specified for the resource or one of
                the special values h\bha\bar\brd\bd, s\bso\bof\bft\bt, or u\bun\bnl\bli\bim\bmi\bit\bte\bed\bd, which stand for the
-              current hard limit, the current soft limit, and  no  limit,  re-
-              spectively.   If _\bl_\bi_\bm_\bi_\bt is omitted, the current value of the soft
+              current  hard  limit,  the current soft limit, and no limit, re-
+              spectively.  If _\bl_\bi_\bm_\bi_\bt is omitted, the current value of the  soft
                limit of the resource is printed, unless the -\b-H\bH option is given.
-              When more than one resource is specified,  the  limit  name  and
-              unit,  if  appropriate, are printed before the value.  Other op-
+              When  more  than  one  resource is specified, the limit name and
+              unit, if appropriate, are printed before the value.   Other  op-
                tions are interpreted as follows:
                -\b-a\ba     All current limits are reported; no limits are set
                -\b-b\bb     The maximum socket buffer size
                -\b-c\bc     The maximum size of core files created
                -\b-d\bd     The maximum size of a process's data segment
                -\b-e\be     The maximum scheduling priority (
-              -\b-f\bf     The maximum size of files written by the  shell  and  its
+              -\b-f\bf     The  maximum  size  of files written by the shell and its
                       children
                -\b-i\bi     The maximum number of pending signals
                -\b-k\bk     The maximum number of kqueues that may be allocated
                -\b-l\bl     The maximum size that may be locked into memory
-              -\b-m\bm     The  maximum resident set size (many systems do not honor
+              -\b-m\bm     The maximum resident set size (many systems do not  honor
                       this limit)
                -\b-n\bn     The maximum number of open file descriptors (most systems
                       do not allow this value to be set)
@@ -1928,245 +1928,245 @@ B\bBA\bAS\bSH\bH B\bBU\bUI\bIL\bLT\bTI\bIN\bN C\bCO\bOM\bMM\bMA\bAN\bND\bDS\bS
                -\b-r\br     The maximum real-time scheduling priority
                -\b-s\bs     The maximum stack size
                -\b-t\bt     The maximum amount of cpu time in seconds
-              -\b-u\bu     The maximum number of processes  available  to  a  single
+              -\b-u\bu     The  maximum  number  of  processes available to a single
                       user
-              -\b-v\bv     The  maximum  amount  of  virtual memory available to the
+              -\b-v\bv     The maximum amount of virtual  memory  available  to  the
                       shell and, on some systems, to its children
                -\b-x\bx     The maximum number of file locks
                -\b-P\bP     The maximum number of pseudoterminals
-              -\b-R\bR     The maximum time  a  real-time  process  can  run  before
+              -\b-R\bR     The  maximum  time  a  real-time  process  can run before
                       blocking, in microseconds
                -\b-T\bT     The maximum number of threads
  
-              If  _\bl_\bi_\bm_\bi_\bt  is given, and the -\b-a\ba option is not used, _\bl_\bi_\bm_\bi_\bt is the
-              new value of the specified resource.  If  no  option  is  given,
-              then  -\b-f\bf is assumed.  Values are in 1024-byte increments, except
-              for -\b-t\bt, which is in seconds; -\b-R\bR, which is in  microseconds;  -\b-p\bp,
-              which  is  in  units of 512-byte blocks; -\b-P\bP, -\b-T\bT, -\b-b\bb, -\b-k\bk, -\b-n\bn, and
-              -\b-u\bu, which are unscaled values; and, when in posix mode,  -\b-c\bc  and
-              -\b-f\bf,  which  are  in 512-byte increments.  The return status is 0
-              unless an invalid option or argument is supplied,  or  an  error
+              If _\bl_\bi_\bm_\bi_\bt is given, and the -\b-a\ba option is not used, _\bl_\bi_\bm_\bi_\bt  is  the
+              new  value  of  the  specified resource.  If no option is given,
+              then -\b-f\bf is assumed.  Values are in 1024-byte increments,  except
+              for  -\b-t\bt,  which is in seconds; -\b-R\bR, which is in microseconds; -\b-p\bp,
+              which is in units of 512-byte blocks; -\b-P\bP, -\b-T\bT, -\b-b\bb,  -\b-k\bk,  -\b-n\bn,  and
+              -\b-u\bu,  which  are unscaled values; and, when in posix mode, -\b-c\bc and
+              -\b-f\bf, which are in 512-byte increments.  The return  status  is  0
+              unless  an  invalid  option or argument is supplied, or an error
                occurs while setting a new limit.
  
         u\bum\bma\bas\bsk\bk [-\b-p\bp] [-\b-S\bS] [_\bm_\bo_\bd_\be]
                The user file-creation mask is set to _\bm_\bo_\bd_\be.  If _\bm_\bo_\bd_\be begins with
-              a  digit,  it is interpreted as an octal number; otherwise it is
-              interpreted as a symbolic mode mask similar to that accepted  by
-              _\bc_\bh_\bm_\bo_\bd(1).   If _\bm_\bo_\bd_\be is omitted, the current value of the mask is
-              printed.  The -\b-S\bS option causes the mask to be  printed  in  sym-
-              bolic  form;  the  default output is an octal number.  If the -\b-p\bp
+              a digit, it is interpreted as an octal number; otherwise  it  is
+              interpreted  as a symbolic mode mask similar to that accepted by
+              _\bc_\bh_\bm_\bo_\bd(1).  If _\bm_\bo_\bd_\be is omitted, the current value of the mask  is
+              printed.   The  -\b-S\bS  option causes the mask to be printed in sym-
+              bolic form; the default output is an octal number.   If  the  -\b-p\bp
                option is supplied, and _\bm_\bo_\bd_\be is omitted, the output is in a form
                that may be reused as input.  The return status is 0 if the mode
-              was successfully changed or if no _\bm_\bo_\bd_\be  argument  was  supplied,
+              was  successfully  changed  or if no _\bm_\bo_\bd_\be argument was supplied,
                and false otherwise.
  
         u\bun\bna\bal\bli\bia\bas\bs [-a\ba] [_\bn_\ba_\bm_\be ...]
-              Remove  each  _\bn_\ba_\bm_\be  from  the list of defined aliases.  If -\b-a\ba is
-              supplied, all alias definitions are removed.  The  return  value
+              Remove each _\bn_\ba_\bm_\be from the list of defined  aliases.   If  -\b-a\ba  is
+              supplied,  all  alias definitions are removed.  The return value
                is true unless a supplied _\bn_\ba_\bm_\be is not a defined alias.
  
         u\bun\bns\bse\bet\bt [-f\bfv\bv] [-n\bn] [_\bn_\ba_\bm_\be ...]
-              For  each  _\bn_\ba_\bm_\be,  remove the corresponding variable or function.
+              For each _\bn_\ba_\bm_\be, remove the corresponding  variable  or  function.
                If the -\b-v\bv option is given, each _\bn_\ba_\bm_\be refers to a shell variable,
-              and that variable is removed.  Read-only variables  may  not  be
-              unset.   If  -\b-f\bf  is specified, each _\bn_\ba_\bm_\be refers to a shell func-
-              tion, and the function definition is removed.  If the -\b-n\bn  option
-              is  supplied, and _\bn_\ba_\bm_\be is a variable with the _\bn_\ba_\bm_\be_\br_\be_\bf attribute,
-              _\bn_\ba_\bm_\be will be unset rather than the variable it  references.   -\b-n\bn
-              has  no  effect if the -\b-f\bf option is supplied.  If no options are
-              supplied, each _\bn_\ba_\bm_\be refers to a variable; if there is  no  vari-
-              able  by that name, a function with that name, if any, is unset.
-              Each unset variable or function is removed from the  environment
-              passed   to   subsequent  commands.   If  any  of  B\bBA\bAS\bSH\bH_\b_A\bAL\bLI\bIA\bAS\bSE\bES\bS,
+              and  that  variable  is removed.  Read-only variables may not be
+              unset.  If -\b-f\bf is specified, each _\bn_\ba_\bm_\be refers to  a  shell  func-
+              tion,  and the function definition is removed.  If the -\b-n\bn option
+              is supplied, and _\bn_\ba_\bm_\be is a variable with the _\bn_\ba_\bm_\be_\br_\be_\bf  attribute,
+              _\bn_\ba_\bm_\be  will  be unset rather than the variable it references.  -\b-n\bn
+              has no effect if the -\b-f\bf option is supplied.  If no  options  are
+              supplied,  each  _\bn_\ba_\bm_\be refers to a variable; if there is no vari-
+              able by that name, a function with that name, if any, is  unset.
+              Each  unset variable or function is removed from the environment
+              passed  to  subsequent  commands.   If  any   of   B\bBA\bAS\bSH\bH_\b_A\bAL\bLI\bIA\bAS\bSE\bES\bS,
                B\bBA\bAS\bSH\bH_\b_A\bAR\bRG\bGV\bV0\b0,  B\bBA\bAS\bSH\bH_\b_C\bCM\bMD\bDS\bS,  B\bBA\bAS\bSH\bH_\b_C\bCO\bOM\bMM\bMA\bAN\bND\bD,  B\bBA\bAS\bSH\bH_\b_S\bSU\bUB\bBS\bSH\bHE\bEL\bLL\bL,  B\bBA\bAS\bSH\bHP\bPI\bID\bD,
-              C\bCO\bOM\bMP\bP_\b_W\bWO\bOR\bRD\bDB\bBR\bRE\bEA\bAK\bKS\bS,  D\bDI\bIR\bRS\bST\bTA\bAC\bCK\bK,  E\bEP\bPO\bOC\bCH\bHR\bRE\bEA\bAL\bLT\bTI\bIM\bME\bE,  E\bEP\bPO\bOC\bCH\bHS\bSE\bEC\bCO\bON\bND\bDS\bS, F\bFU\bUN\bNC\bC-\b-
-              N\bNA\bAM\bME\bE, G\bGR\bRO\bOU\bUP\bPS\bS, H\bHI\bIS\bST\bTC\bCM\bMD\bD, L\bLI\bIN\bNE\bEN\bNO\bO, R\bRA\bAN\bND\bDO\bOM\bM, S\bSE\bEC\bCO\bON\bND\bDS\bS, or  S\bSR\bRA\bAN\bND\bDO\bOM\bM  are
+              C\bCO\bOM\bMP\bP_\b_W\bWO\bOR\bRD\bDB\bBR\bRE\bEA\bAK\bKS\bS, D\bDI\bIR\bRS\bST\bTA\bAC\bCK\bK,  E\bEP\bPO\bOC\bCH\bHR\bRE\bEA\bAL\bLT\bTI\bIM\bME\bE,  E\bEP\bPO\bOC\bCH\bHS\bSE\bEC\bCO\bON\bND\bDS\bS,  F\bFU\bUN\bNC\bC-\b-
+              N\bNA\bAM\bME\bE,  G\bGR\bRO\bOU\bUP\bPS\bS,  H\bHI\bIS\bST\bTC\bCM\bMD\bD, L\bLI\bIN\bNE\bEN\bNO\bO, R\bRA\bAN\bND\bDO\bOM\bM, S\bSE\bEC\bCO\bON\bND\bDS\bS, or S\bSR\bRA\bAN\bND\bDO\bOM\bM are
                unset, they lose their special properties, even if they are sub-
                sequently reset.  The exit status is true unless a _\bn_\ba_\bm_\be is read-
                only or may not be unset.
  
         w\bwa\bai\bit\bt [-\b-f\bfn\bn] [-\b-p\bp _\bv_\ba_\br_\bn_\ba_\bm_\be] [_\bi_\bd ...]
                Wait for each specified child process and return its termination
-              status.   Each _\bi_\bd may be a process ID or a job specification; if
-              a job spec is given, all processes in that  job's  pipeline  are
-              waited  for.   If  _\bi_\bd  is  not given, w\bwa\bai\bit\bt waits for all running
-              background jobs and the last-executed process  substitution,  if
+              status.  Each _\bi_\bd may be a process ID or a job specification;  if
+              a  job  spec  is given, all processes in that job's pipeline are
+              waited for.  If _\bi_\bd is not given,  w\bwa\bai\bit\bt  waits  for  all  running
+              background  jobs  and the last-executed process substitution, if
                its process id is the same as $\b$!\b!, and the return status is zero.
-              If  the  -\b-n\bn option is supplied, w\bwa\bai\bit\bt waits for a single job from
+              If the -\b-n\bn option is supplied, w\bwa\bai\bit\bt waits for a single  job  from
                the list of _\bi_\bds or, if no _\bi_\bds are supplied, any job, to complete
-              and returns its exit status.  If none of the supplied  arguments
+              and  returns its exit status.  If none of the supplied arguments
                is a child of the shell, or if no arguments are supplied and the
-              shell  has no unwaited-for children, the exit status is 127.  If
-              the -\b-p\bp option is supplied, the process or job identifier of  the
-              job  for  which  the  exit status is returned is assigned to the
-              variable _\bv_\ba_\br_\bn_\ba_\bm_\be named by the  option  argument.   The  variable
-              will  be unset initially, before any assignment.  This is useful
-              only when the -\b-n\bn option is supplied.  Supplying the  -\b-f\bf  option,
-              when  job control is enabled, forces w\bwa\bai\bit\bt to wait for _\bi_\bd to ter-
+              shell has no unwaited-for children, the exit status is 127.   If
+              the  -\b-p\bp option is supplied, the process or job identifier of the
+              job for which the exit status is returned  is  assigned  to  the
+              variable  _\bv_\ba_\br_\bn_\ba_\bm_\be  named  by  the option argument.  The variable
+              will be unset initially, before any assignment.  This is  useful
+              only  when  the -\b-n\bn option is supplied.  Supplying the -\b-f\bf option,
+              when job control is enabled, forces w\bwa\bai\bit\bt to wait for _\bi_\bd to  ter-
                minate before returning its status, instead of returning when it
-              changes status.  If _\bi_\bd specifies a non-existent process or  job,
-              the  return  status is 127.  If w\bwa\bai\bit\bt is interrupted by a signal,
-              the return status will be greater than 128, as  described  under
-              S\bSI\bIG\bGN\bNA\bAL\bLS\bS  in  _\bb_\ba_\bs_\bh(1).   Otherwise, the return status is the exit
+              changes  status.  If _\bi_\bd specifies a non-existent process or job,
+              the return status is 127.  If w\bwa\bai\bit\bt is interrupted by  a  signal,
+              the  return  status will be greater than 128, as described under
+              S\bSI\bIG\bGN\bNA\bAL\bLS\bS in _\bb_\ba_\bs_\bh(1).  Otherwise, the return status  is  the  exit
                status of the last process or job waited for.
  
  S\bSH\bHE\bEL\bLL\bL C\bCO\bOM\bMP\bPA\bAT\bTI\bIB\bBI\bIL\bLI\bIT\bTY\bY M\bMO\bOD\bDE\bE
-       Bash-4.0 introduced the concept of a _\bs_\bh_\be_\bl_\bl _\bc_\bo_\bm_\bp_\ba_\bt_\bi_\bb_\bi_\bl_\bi_\bt_\by _\bl_\be_\bv_\be_\bl,  speci-
+       Bash-4.0  introduced the concept of a _\bs_\bh_\be_\bl_\bl _\bc_\bo_\bm_\bp_\ba_\bt_\bi_\bb_\bi_\bl_\bi_\bt_\by _\bl_\be_\bv_\be_\bl, speci-
         fied as a set of options to the shopt builtin (c\bco\bom\bmp\bpa\bat\bt3\b31\b1, c\bco\bom\bmp\bpa\bat\bt3\b32\b2, c\bco\bom\bm-\b-
-       p\bpa\bat\bt4\b40\b0,  c\bco\bom\bmp\bpa\bat\bt4\b41\b1,  and so on).  There is only one current compatibility
+       p\bpa\bat\bt4\b40\b0, c\bco\bom\bmp\bpa\bat\bt4\b41\b1, and so on).  There is only one  current  compatibility
         level -- each option is mutually exclusive.  The compatibility level is
-       intended to allow users to select behavior from previous versions  that
-       is  incompatible  with newer versions while they migrate scripts to use
-       current features and behavior. It's intended to be  a  temporary  solu-
+       intended  to allow users to select behavior from previous versions that
+       is incompatible with newer versions while they migrate scripts  to  use
+       current  features  and  behavior. It's intended to be a temporary solu-
         tion.
  
-       This  section does not mention behavior that is standard for a particu-
-       lar version (e.g., setting c\bco\bom\bmp\bpa\bat\bt3\b32\b2 means that quoting the rhs  of  the
-       regexp  matching operator quotes special regexp characters in the word,
+       This section does not mention behavior that is standard for a  particu-
+       lar  version  (e.g., setting c\bco\bom\bmp\bpa\bat\bt3\b32\b2 means that quoting the rhs of the
+       regexp matching operator quotes special regexp characters in the  word,
         which is default behavior in bash-3.2 and subsequent versions).
  
-       If a user enables, say, c\bco\bom\bmp\bpa\bat\bt3\b32\b2, it may affect the behavior  of  other
-       compatibility  levels  up  to  and  including the current compatibility
-       level.  The idea is that each  compatibility  level  controls  behavior
-       that  changed  in that version of b\bba\bas\bsh\bh, but that behavior may have been
-       present in earlier versions.  For instance, the change to  use  locale-
-       based  comparisons  with  the  [\b[[\b[ command came in bash-4.1, and earlier
+       If  a  user enables, say, c\bco\bom\bmp\bpa\bat\bt3\b32\b2, it may affect the behavior of other
+       compatibility levels up to  and  including  the  current  compatibility
+       level.   The  idea  is  that each compatibility level controls behavior
+       that changed in that version of b\bba\bas\bsh\bh, but that behavior may  have  been
+       present  in  earlier versions.  For instance, the change to use locale-
+       based comparisons with the [\b[[\b[ command came  in  bash-4.1,  and  earlier
         versions used ASCII-based comparisons, so enabling c\bco\bom\bmp\bpa\bat\bt3\b32\b2 will enable
-       ASCII-based comparisons as well.  That granularity may  not  be  suffi-
-       cient  for  all uses, and as a result users should employ compatibility
-       levels carefully.  Read the documentation for a particular  feature  to
+       ASCII-based  comparisons  as  well.  That granularity may not be suffi-
+       cient for all uses, and as a result users should  employ  compatibility
+       levels  carefully.   Read the documentation for a particular feature to
         find out the current behavior.
  
-       Bash-4.3  introduced  a new shell variable: B\bBA\bAS\bSH\bH_\b_C\bCO\bOM\bMP\bPA\bAT\bT.  The value as-
+       Bash-4.3 introduced a new shell variable: B\bBA\bAS\bSH\bH_\b_C\bCO\bOM\bMP\bPA\bAT\bT.  The  value  as-
         signed to this variable (a decimal version number like 4.2, or an inte-
-       ger corresponding to the c\bco\bom\bmp\bpa\bat\bt_\bN_\bN option, like 42) determines the  com-
+       ger  corresponding to the c\bco\bom\bmp\bpa\bat\bt_\bN_\bN option, like 42) determines the com-
         patibility level.
  
-       Starting  with bash-4.4, b\bba\bas\bsh\bh has begun deprecating older compatibility
-       levels.  Eventually, the options will be removed in favor of  B\bBA\bAS\bSH\bH_\b_C\bCO\bOM\bM-\b-
+       Starting with bash-4.4, b\bba\bas\bsh\bh has begun deprecating older  compatibility
+       levels.   Eventually, the options will be removed in favor of B\bBA\bAS\bSH\bH_\b_C\bCO\bOM\bM-\b-
         P\bPA\bAT\bT.
  
-       Bash-5.0  was  the  final version for which there will be an individual
+       Bash-5.0 was the final version for which there will  be  an  individual
         shopt option for the previous version. Users should control the compat-
         ibility level with B\bBA\bAS\bSH\bH_\b_C\bCO\bOM\bMP\bPA\bAT\bT.
  
-       The following table describes the behavior changes controlled  by  each
+       The  following  table describes the behavior changes controlled by each
         compatibility level setting.  The c\bco\bom\bmp\bpa\bat\bt_\bN_\bN tag is used as shorthand for
         setting the compatibility level to _\bN_\bN using one of the following mecha-
-       nisms.   For versions prior to bash-5.0, the compatibility level may be
-       set using the corresponding c\bco\bom\bmp\bpa\bat\bt_\bN_\bN shopt option.   For  bash-4.3  and
-       later  versions,  the  B\bBA\bAS\bSH\bH_\b_C\bCO\bOM\bMP\bPA\bAT\bT variable is preferred, and it is re-
+       nisms.  For versions prior to bash-5.0, the compatibility level may  be
+       set  using  the  corresponding c\bco\bom\bmp\bpa\bat\bt_\bN_\bN shopt option.  For bash-4.3 and
+       later versions, the B\bBA\bAS\bSH\bH_\b_C\bCO\bOM\bMP\bPA\bAT\bT variable is preferred, and  it  is  re-
         quired for bash-5.1 and later versions.
  
         c\bco\bom\bmp\bpa\bat\bt3\b31\b1
                +\bo      quoting the rhs of the [\b[[\b[ command's regexp matching oper-
-                     ator (=~) has no special effect
+                     ator (=) has no special effect
  
         c\bco\bom\bmp\bpa\bat\bt3\b32\b2
-              +\bo      the <\b< and >\b> operators to the [\b[[\b[ command do  not  consider
+              +\bo      the  <\b<  and >\b> operators to the [\b[[\b[ command do not consider
                       the current locale when comparing strings; they use ASCII
                       ordering.
  
         c\bco\bom\bmp\bpa\bat\bt4\b40\b0
-              +\bo      the  <\b<  and >\b> operators to the [\b[[\b[ command do not consider
+              +\bo      the <\b< and >\b> operators to the [\b[[\b[ command do  not  consider
                       the current locale when comparing strings; they use ASCII
                       ordering.  B\bBa\bas\bsh\bh versions prior to bash-4.1 use ASCII col-
-                     lation and _\bs_\bt_\br_\bc_\bm_\bp(3); bash-4.1 and later use the  current
+                     lation  and _\bs_\bt_\br_\bc_\bm_\bp(3); bash-4.1 and later use the current
                       locale's collation sequence and _\bs_\bt_\br_\bc_\bo_\bl_\bl(3).
  
         c\bco\bom\bmp\bpa\bat\bt4\b41\b1
-              +\bo      in  _\bp_\bo_\bs_\bi_\bx mode, t\bti\bim\bme\be may be followed by options and still
+              +\bo      in _\bp_\bo_\bs_\bi_\bx mode, t\bti\bim\bme\be may be followed by options and  still
                       be recognized as a reserved word (this is POSIX interpre-
                       tation 267)
                +\bo      in _\bp_\bo_\bs_\bi_\bx mode, the parser requires that an even number of
-                     single quotes occur in the  _\bw_\bo_\br_\bd  portion  of  a  double-
-                     quoted  parameter expansion and treats them specially, so
-                     that characters within the single quotes  are  considered
+                     single  quotes  occur  in  the  _\bw_\bo_\br_\bd portion of a double-
+                     quoted parameter expansion and treats them specially,  so
+                     that  characters  within the single quotes are considered
                       quoted (this is POSIX interpretation 221)
  
         c\bco\bom\bmp\bpa\bat\bt4\b42\b2
                +\bo      the replacement string in double-quoted pattern substitu-
-                     tion  does  not undergo quote removal, as it does in ver-
+                     tion does not undergo quote removal, as it does  in  ver-
                       sions after bash-4.2
-              +\bo      in posix mode, single quotes are considered special  when
-                     expanding  the  _\bw_\bo_\br_\bd portion of a double-quoted parameter
-                     expansion and can be used to quote  a  closing  brace  or
-                     other  special character (this is part of POSIX interpre-
-                     tation 221); in later versions,  single  quotes  are  not
+              +\bo      in  posix mode, single quotes are considered special when
+                     expanding the _\bw_\bo_\br_\bd portion of a  double-quoted  parameter
+                     expansion  and  can  be  used to quote a closing brace or
+                     other special character (this is part of POSIX  interpre-
+                     tation  221);  in  later  versions, single quotes are not
                       special within double-quoted word expansions
  
         c\bco\bom\bmp\bpa\bat\bt4\b43\b3
-              +\bo      the  shell does not print a warning message if an attempt
-                     is made to use a quoted compound assignment as  an  argu-
-                     ment  to  declare  (e.g.,  declare -a foo='(1 2)'). Later
-                     versions warn that this usage is deprecated
-              +\bo      word expansion errors  are  considered  non-fatal  errors
-                     that  cause  the  current  command to fail, even in posix
-                     mode (the default behavior is to make them  fatal  errors
+              +\bo      the shell does not print a warning message if an  attempt
+                     is  made  to use a quoted compound assignment as an argu-
+                     ment to declare (e.g., declare -a foo=(1 2)). Later  ver-
+                     sions warn that this usage is deprecated
+              +\bo      word  expansion  errors  are  considered non-fatal errors
+                     that cause the current command to  fail,  even  in  posix
+                     mode  (the  default behavior is to make them fatal errors
                       that cause the shell to exit)
-              +\bo      when   executing   a   shell  function,  the  loop  state
+              +\bo      when  executing  a  shell  function,   the   loop   state
                       (while/until/etc.)  is not reset, so b\bbr\bre\bea\bak\bk or c\bco\bon\bnt\bti\bin\bnu\bue\be in
                       that function will break or continue loops in the calling
-                     context. Bash-4.4 and later reset the loop state to  pre-
+                     context.  Bash-4.4 and later reset the loop state to pre-
                       vent this
  
         c\bco\bom\bmp\bpa\bat\bt4\b44\b4
-              +\bo      the  shell  sets  up  the  values  used  by B\bBA\bAS\bSH\bH_\b_A\bAR\bRG\bGV\bV and
-                     B\bBA\bAS\bSH\bH_\b_A\bAR\bRG\bGC\bC so they can expand to  the  shell's  positional
+              +\bo      the shell sets  up  the  values  used  by  B\bBA\bAS\bSH\bH_\b_A\bAR\bRG\bGV\bV  and
+                     B\bBA\bAS\bSH\bH_\b_A\bAR\bRG\bGC\bC  so  they  can expand to the shell's positional
                       parameters even if extended debugging mode is not enabled
-              +\bo      a  subshell  inherits  loops  from its parent context, so
-                     b\bbr\bre\bea\bak\bk or  c\bco\bon\bnt\bti\bin\bnu\bue\be  will  cause  the  subshell  to  exit.
-                     Bash-5.0  and  later  reset the loop state to prevent the
+              +\bo      a subshell inherits loops from  its  parent  context,  so
+                     b\bbr\bre\bea\bak\bk  or  c\bco\bon\bnt\bti\bin\bnu\bue\be  will  cause  the  subshell  to exit.
+                     Bash-5.0 and later reset the loop state  to  prevent  the
                       exit
-              +\bo      variable assignments preceding builtins like  e\bex\bxp\bpo\bor\brt\bt  and
+              +\bo      variable  assignments  preceding builtins like e\bex\bxp\bpo\bor\brt\bt and
                       r\bre\bea\bad\bdo\bon\bnl\bly\by that set attributes continue to affect variables
                       with the same name in the calling environment even if the
                       shell is not in posix mode
  
         c\bco\bom\bmp\bpa\bat\bt5\b50\b0
-              +\bo      Bash-5.1  changed  the way $\b$R\bRA\bAN\bND\bDO\bOM\bM is generated to intro-
+              +\bo      Bash-5.1 changed the way $\b$R\bRA\bAN\bND\bDO\bOM\bM is generated  to  intro-
                       duce slightly more randomness. If the shell compatibility
-                     level is set to 50 or lower, it  reverts  to  the  method
-                     from  bash-5.0 and previous versions, so seeding the ran-
-                     dom number generator by assigning a value to R\bRA\bAN\bND\bDO\bOM\bM  will
+                     level  is  set  to  50 or lower, it reverts to the method
+                     from bash-5.0 and previous versions, so seeding the  ran-
+                     dom  number generator by assigning a value to R\bRA\bAN\bND\bDO\bOM\bM will
                       produce the same sequence as in bash-5.0
-              +\bo      If  the  command hash table is empty, bash versions prior
-                     to bash-5.1 printed an informational message to that  ef-
-                     fect,  even  when  producing output that can be reused as
-                     input. Bash-5.1 suppresses that message when the  -\b-l\bl  op-
+              +\bo      If the command hash table is empty, bash  versions  prior
+                     to  bash-5.1 printed an informational message to that ef-
+                     fect, even when producing output that can  be  reused  as
+                     input.  Bash-5.1  suppresses that message when the -\b-l\bl op-
                       tion is supplied.
  
         c\bco\bom\bmp\bpa\bat\bt5\b51\b1
-              +\bo      The  u\bun\bns\bse\bet\bt  builtin  treats  attempts to unset array sub-
-                     scripts @\b@ and *\b* differently depending on whether the  ar-
-                     ray  is  indexed  or associative, and differently than in
+              +\bo      The u\bun\bns\bse\bet\bt builtin treats attempts  to  unset  array  sub-
+                     scripts  @\b@ and *\b* differently depending on whether the ar-
+                     ray is indexed or associative, and  differently  than  in
                       previous versions.
                +\bo      arithmetic commands ( (\b((\b(...)\b))\b) ) and the expressions in an
                       arithmetic for statement can be expanded more than once
-              +\bo      expressions used as arguments to arithmetic operators  in
+              +\bo      expressions  used as arguments to arithmetic operators in
                       the [\b[[\b[ conditional command can be expanded more than once
-              +\bo      the  expressions  in  substring parameter brace expansion
+              +\bo      the expressions in substring  parameter  brace  expansion
                       can be expanded more than once
                +\bo      the expressions in the $\b$(\b((\b(...)\b))\b) word expansion can be ex-
                       panded more than once
-              +\bo      arithmetic expressions used as indexed  array  subscripts
+              +\bo      arithmetic  expressions  used as indexed array subscripts
                       can be expanded more than once
-              +\bo      t\bte\bes\bst\bt  -\b-v\bv,  when  given an argument of A\bA[\b[@\b@]\b], where A\bA is an
+              +\bo      t\bte\bes\bst\bt -\b-v\bv, when given an argument of A\bA[\b[@\b@]\b], where  A\bA  is  an
                       existing associative array, will return true if the array
-                     has any set elements.  Bash-5.2 will look for and  report
+                     has  any set elements.  Bash-5.2 will look for and report
                       on a key named @\b@.
                +\bo      the  ${_\bp_\ba_\br_\ba_\bm_\be_\bt_\be_\br[\b[:\b:]\b]=\b=_\bv_\ba_\bl_\bu_\be}  word  expansion  will  return
-                     _\bv_\ba_\bl_\bu_\be, before any variable-specific transformations  have
+                     _\bv_\ba_\bl_\bu_\be,  before any variable-specific transformations have
                       been performed (e.g., converting to lowercase).  Bash-5.2
                       will return the final value assigned to the variable.
-              +\bo      Parsing  command substitutions will behave as if extended
+              +\bo      Parsing command substitutions will behave as if  extended
                       globbing (see the description of the s\bsh\bho\bop\bpt\bt builtin above)
-                     is enabled, so that parsing a command  substitution  con-
+                     is  enabled,  so that parsing a command substitution con-
                       taining an extglob pattern (say, as part of a shell func-
-                     tion)  will  not fail.  This assumes the intent is to en-
-                     able extglob before the command is executed and word  ex-
-                     pansions  are  performed.  It will fail at word expansion
-                     time if extglob hasn't been enabled by the time the  com-
+                     tion) will not fail.  This assumes the intent is  to  en-
+                     able  extglob before the command is executed and word ex-
+                     pansions are performed.  It will fail at  word  expansion
+                     time  if extglob hasn't been enabled by the time the com-
                       mand is executed.
  
  S\bSE\bEE\bE A\bAL\bLS\bSO\bO
diff --git a/doc/rbash.0 b/doc/rbash.0

index 96845d0c2fd4d78ebd4edd9975a26f195cf412cd..230b358b14d9fef763e700e71c245ae7de0a1de5 100644 (file)
--- a/doc/rbash.0
+++ b/doc/rbash.0
@@ -1,41 +1,39 @@
-RBASH(1)                    General Commands Manual                   RBASH(1)
-
-
+_\bR_\bB_\bA_\bS_\bH(1)                    General Commands Manual                   _\bR_\bB_\bA_\bS_\bH(1)
  
  N\bNA\bAM\bME\bE
         rbash - restricted bash, see b\bba\bas\bsh\bh(1)
  
  R\bRE\bES\bST\bTR\bRI\bIC\bCT\bTE\bED\bD S\bSH\bHE\bEL\bLL\bL
         If b\bba\bas\bsh\bh is started with the name r\brb\bba\bas\bsh\bh, or the -\b-r\br option is supplied at
-       invocation, the shell becomes restricted.  A restricted shell  is  used
-       to  set  up an environment more controlled than the standard shell.  It
-       behaves identically to b\bba\bas\bsh\bh with the exception that the  following  are
+       invocation,  the  shell becomes restricted.  A restricted shell is used
+       to set up an environment more controlled than the standard  shell.   It
+       behaves  identically  to b\bba\bas\bsh\bh with the exception that the following are
         disallowed or not performed:
  
         +\bo      changing directories with c\bcd\bd
  
-       +\bo      setting  or  unsetting the values of S\bSH\bHE\bEL\bLL\bL, P\bPA\bAT\bTH\bH, H\bHI\bIS\bST\bTF\bFI\bIL\bLE\bE, E\bEN\bNV\bV,
+       +\bo      setting or unsetting the values of S\bSH\bHE\bEL\bLL\bL, P\bPA\bAT\bTH\bH,  H\bHI\bIS\bST\bTF\bFI\bIL\bLE\bE,  E\bEN\bNV\bV,
                or B\bBA\bAS\bSH\bH_\b_E\bEN\bNV\bV
  
         +\bo      specifying command names containing /\b/
  
-       +\bo      specifying a filename containing a /\b/ as an  argument  to  the  .\b.
+       +\bo      specifying  a  filename  containing  a /\b/ as an argument to the .\b.
                builtin command
  
-       +\bo      specifying  a  filename containing a slash as an argument to the
+       +\bo      specifying a filename containing a slash as an argument  to  the
                h\bhi\bis\bst\bto\bor\bry\by builtin command
  
-       +\bo      specifying a filename containing a slash as an argument  to  the
+       +\bo      specifying  a  filename containing a slash as an argument to the
                -\b-p\bp option to the h\bha\bas\bsh\bh builtin command
  
-       +\bo      importing  function  definitions  from  the shell environment at
+       +\bo      importing function definitions from  the  shell  environment  at
                startup
  
-       +\bo      parsing the value of S\bSH\bHE\bEL\bLL\bLO\bOP\bPT\bTS\bS from  the  shell  environment  at
+       +\bo      parsing  the  value  of  S\bSH\bHE\bEL\bLL\bLO\bOP\bPT\bTS\bS from the shell environment at
                startup
  
-       +\bo      redirecting output using the >, >|, <>, >&, &>, and >> redirect-
-              ion operators
+       +\bo      redirecting output using the >, >|, <>, >&, &>, and >>  redirec-
+              tion operators
  
         +\bo      using the e\bex\bxe\bec\bc builtin command to replace the shell with another
                command
@@ -59,6 +57,4 @@ R\bRE\bES\bST\bTR\bRI\bIC\bCT\bTE\bED\bD S\bSH\bHE\bEL\bLL\bL
  S\bSE\bEE\bE A\bAL\bLS\bSO\bO
         bash(1)
  
-
-
-Bash-5.2                       2021 November 22                       RBASH(1)
+Bash-5.2                       2021 November 22                       _\bR_\bB_\bA_\bS_\bH(1)
diff --git a/execute_cmd.c b/execute_cmd.c

index 0a5e330512c0820cddf8eaaac5e26b9711d1bbaf..828dead5332b7759c21660cab13a42d7b4789ff6 100644 (file)
--- a/execute_cmd.c
+++ b/execute_cmd.c
@@ -4706,6 +4706,10 @@ itrace("execute_simple_command: posix mode tempenv assignment error");
      }
  #endif /* JOB_CONTROL */
  
+  /* unwind-protect this since we will call dispose_words on words if we run
+     the unwind-protects. */
+  unwind_protect_string (this_command_name);
+
  run_builtin:
    /* Remember the name of this command globally. */
    this_command_name = words->word->word;
@@ -5286,6 +5290,10 @@ execute_function (SHELL_VAR *var, WORD_LIST *words, int flags, struct fd_bitmap
    if (shell_compatibility_level > 43)
      loop_level = 0;
  
+  /* unwind-protect this because execute_command_internal will overwrite it
+     with something we will free if unwind-protects are run */
+  if (subshell == 0)
+    unwind_protect_pointer (currently_executing_command);
    fc = tc;
  
    from_return_trap = 0;
@@ -5324,6 +5332,7 @@ execute_function (SHELL_VAR *var, WORD_LIST *words, int flags, struct fd_bitmap
           currently_executing_command = save_current;
         }
  #else
+      currently_executing_command = save_current;
        result = execute_command_internal (fc, 0, NO_PIPE, NO_PIPE, fds_to_close);
  
        save_current = currently_executing_command;
diff --git a/lib/readline/bind.c b/lib/readline/bind.c

index 47478f082a5b0409ca55764e8f62a97db9bc67f5..9744ae2f48d2d17506d0522aaaa1b3ef0c1bfb00 100644 (file)
--- a/lib/readline/bind.c
+++ b/lib/readline/bind.c
@@ -2901,7 +2901,7 @@ rl_dump_macros (int count, int key)
  static char *
  _rl_get_string_variable_value (const char *name)
  {
-  static char numbuf[64];
+  static char numbuf[64];      /* more than enough for INTMAX_MAX */
    char *ret;
  
    if (_rl_stricmp (name, "active-region-start-color") == 0)
@@ -2951,24 +2951,40 @@ _rl_get_string_variable_value (const char *name)
      return (_rl_comment_begin ? _rl_comment_begin : RL_COMMENT_BEGIN_DEFAULT);
    else if (_rl_stricmp (name, "completion-display-width") == 0)
      {
+#if defined (HAVE_VSNPRINTF)
+      snprintf (numbuf, sizeof (numbuf), "%d", _rl_completion_columns);
+#else
        sprintf (numbuf, "%d", _rl_completion_columns);
+#endif
        return (numbuf);
      }
    else if (_rl_stricmp (name, "completion-prefix-display-length") == 0)
      {
+#if defined (HAVE_VSNPRINTF)
+      snprintf (numbuf, sizeof (numbuf), "%d", _rl_completion_prefix_display_length);
+#else
        sprintf (numbuf, "%d", _rl_completion_prefix_display_length);
+#endif
        return (numbuf);
      }
    else if (_rl_stricmp (name, "completion-query-items") == 0)
      {
+#if defined (HAVE_VSNPRINTF)
+      snprintf (numbuf, sizeof (numbuf), "%d", rl_completion_query_items);
+#else
        sprintf (numbuf, "%d", rl_completion_query_items);
+#endif
        return (numbuf);
      }
    else if (_rl_stricmp (name, "editing-mode") == 0)
      return (rl_get_keymap_name_from_edit_mode ());
    else if (_rl_stricmp (name, "history-size") == 0)
      {
+#if defined (HAVE_VSNPRINTF)
+      snprintf (numbuf, sizeof (numbuf), "%d", history_is_stifled() ? history_max_entries : -1);
+#else
        sprintf (numbuf, "%d", history_is_stifled() ? history_max_entries : -1);
+#endif
        return (numbuf);
      }
    else if (_rl_stricmp (name, "isearch-terminators") == 0)
@@ -2995,7 +3011,11 @@ _rl_get_string_variable_value (const char *name)
      }
    else if (_rl_stricmp (name, "keyseq-timeout") == 0)
      {
-      sprintf (numbuf, "%d", _rl_keyseq_timeout);    
+#if defined (HAVE_VSNPRINTF)
+      snprintf (numbuf, sizeof (numbuf), "%d", _rl_keyseq_timeout);
+#else
+      sprintf (numbuf, "%d", _rl_keyseq_timeout);
+#endif
        return (numbuf);
      }
    else if (_rl_stricmp (name, "emacs-mode-string") == 0)
diff --git a/lib/readline/display.c b/lib/readline/display.c

index edc87264357292b28a16a0ec8b0649b6c82a20f3..258631ebdea3a7a388f639d6cefaac5233c49d85 100644 (file)
--- a/lib/readline/display.c
+++ b/lib/readline/display.c
@@ -1125,7 +1125,11 @@ rl_redisplay (void)
               char obuf[5];
               int olen;
  
+#if defined (HAVE_VSNPRINTF)
+             olen = snprintf (obuf, sizeof (obuf), "\\%o", c);
+#else
               olen = sprintf (obuf, "\\%o", c);
+#endif
           
               for (temp = 0; temp < olen; temp++)
                 {
diff --git a/lib/readline/doc/history.3 b/lib/readline/doc/history.3

index 0a7024a24f6d38f2f28920adc4784adcc5a897fe..7a76001940905beceb6f4f977a257fb50413967b 100644 (file)
--- a/lib/readline/doc/history.3
+++ b/lib/readline/doc/history.3
@@ -10,6 +10,19 @@
  .\"
  .TH HISTORY 3 "2024 February 5" "GNU History 8.3"
  .\"
+.ie \n(.g \{\
+.ds ' \(aq
+.ds " \(dq
+.ds ^ \(ha
+.ds ~ \(ti
+.\}
+.el \{\
+.ds ' '
+.ds " ""\" two adjacent quotes and no space before this comment
+.ds ^ ^
+.ds ~ ~
+.\}
+.
  .\" File Name macro.  This used to be `.PN', for Path Name,
  .\" but Sun doesn't seem to like that very much.
  .\"
@@ -88,7 +101,7 @@ Only backslash (\^\fB\e\fP\^) and single quotes can quote
  the history expansion character.
  .PP
  There is a special abbreviation for substitution, active when the
-\fIquick substitution\fP character (default \fB\(ha\fP)
+\fIquick substitution\fP character (default \fB\*^\fP)
  is the first character on the line.
  It selects the previous history list entry, using an event designator
  equivalent to \fB!!\fP,
@@ -138,13 +151,13 @@ is followed immediately by a newline.
  If \fIstring\fP is missing, the string from the most recent search is used;
  it is an error if there is no previous search string.
  .TP
-.B \d\s+2\(ha\s-2\u\fIstring1\fP\d\s+2\(ha\s-2\u\fIstring2\fP\d\s+2\(ha\s-2\u
+.B \d\s+2\*^\s-2\u\fIstring1\fP\d\s+2\*^\s-2\u\fIstring2\fP\d\s+2\*^\s-2\u
  Quick substitution.  Repeat the last command, replacing
  .I string1
  with
  .IR string2 .
  Equivalent to
-.Q !!:s\d\s+2\(ha\s-2\u\fIstring1\fP\d\s+2\(ha\s-2\u\fIstring2\fP\d\s+2\(ha\s-2\u
+.Q !!:s\d\s+2\*^\s-2\u\fIstring1\fP\d\s+2\*^\s-2\u\fIstring2\fP\d\s+2\*^\s-2\u
  (see \fBModifiers\fP below).
  .TP
  .B !#
@@ -156,7 +169,7 @@ A
  .B :
  separates the event specification from the word designator.
  It may be omitted if the word designator begins with a
-.BR \(ha ,
+.BR \*^ ,
  .BR $ ,
  .BR * ,
  .BR \- ,
@@ -175,7 +188,7 @@ word.
  .I n
  The \fIn\fRth word.
  .TP
-.B \(ha
+.B \*^
  The first argument.  That is, word 1.
  .TP
  .B $
@@ -533,7 +546,7 @@ This section documents the functions for managing a history file.
  
  .Fn1 int read_history "const char *filename"
  Add the contents of \fIfilename\fP to the history list, a line at a time.
-If \fIfilename\fP is \fBNULL\fP, then read from \fI\(ti/.history\fP.
+If \fIfilename\fP is \fBNULL\fP, then read from \fI\*~/.history\fP.
  Returns 0 if successful, or \fBerrno\fP if not.
  
  .Fn3 int read_history_range "const char *filename" "int from" "int to"
@@ -541,25 +554,25 @@ Read a range of lines from \fIfilename\fP, adding them to the history list.
  Start reading at line \fIfrom\fP and end at \fIto\fP.
  If \fIfrom\fP is zero, start at the beginning.  If \fIto\fP is less than
  \fIfrom\fP, then read until the end of the file.  If \fIfilename\fP is
-\fBNULL\fP, then read from \fI\(ti/.history\fP.  Returns 0 if successful,
+\fBNULL\fP, then read from \fI\*~/.history\fP.  Returns 0 if successful,
  or \fBerrno\fP if not.
  
  .Fn1 int write_history "const char *filename"
  Write the current history to \fIfilename\fP, overwriting \fIfilename\fP
  if necessary.
-If \fIfilename\fP is \fBNULL\fP, then write the history list to \fI\(ti/.history\fP.
+If \fIfilename\fP is \fBNULL\fP, then write the history list to \fI\*~/.history\fP.
  Returns 0 on success, or \fBerrno\fP on a read or write error.
  
  
  .Fn2 int append_history "int nelements" "const char *filename"
  Append the last \fInelements\fP of the history list to \fIfilename\fP.
-If \fIfilename\fP is \fBNULL\fP, then append to \fI\(ti/.history\fP.
+If \fIfilename\fP is \fBNULL\fP, then append to \fI\*~/.history\fP.
  Returns 0 on success, or \fBerrno\fP on a read or write error.
  
  .Fn2 int history_truncate_file "const char *filename" "int nlines"
  Truncate the history file \fIfilename\fP, leaving only the last
  \fInlines\fP lines.
-If \fIfilename\fP is \fBNULL\fP, then \fI\(ti/.history\fP is truncated.
+If \fIfilename\fP is \fBNULL\fP, then \fI\*~/.history\fP is truncated.
  Returns 0 on success, or \fBerrno\fP on failure.
  
  .SS History Expansion
@@ -640,7 +653,7 @@ Setting this to 0 inhibits history expansion.
  
  .Vb char history_subst_char
  The character that invokes word substitution if found at the start of
-a line.  The default is \fB\(ha\fP.
+a line.  The default is \fB\*^\fP.
  
  .Vb char history_comment_char
  During tokenization, if this character is seen as the first character
@@ -650,7 +663,7 @@ This is disabled by default.
  
  .Vb "char *" history_word_delimiters
  The characters that separate tokens for \fBhistory_tokenize()\fP.
-The default value is \fB\(dq\ \et\en()<>;&|\(dq\fP.
+The default value is \fB\*"\ \et\en()<>;&|\*"\fP.
  
  .Vb "char *" history_no_expand_chars
  The list of characters which inhibit history expansion if found immediately
@@ -672,10 +685,10 @@ The default value is 0.
  
  .Vb int history_quoting_state
  An application may set this variable to indicate that the current line
-being expanded is subject to existing quoting. If set to \fI\(aq\fP, the
+being expanded is subject to existing quoting. If set to \fI\*'\fP, the
  history expansion function will assume that the line is single-quoted and
  inhibit expansion until it reads an unquoted closing single quote; if set
-to \fI\(dq\fP, history expansion will assume the line is double quoted until
+to \fI\*"\fP, history expansion will assume the line is double quoted until
  it reads an unquoted closing double quote. If set to zero, the default,
  the history expansion function will assume the line is not quoted and
  treat quote characters within the line as described above.
@@ -694,7 +707,7 @@ By default, this variable is set to \fBNULL\fP.
  .SH FILES
  .PD 0
  .TP
-.FN \(ti/.history
+.FN \*~/.history
  Default filename for reading and writing saved history
  .PD
  .SH "SEE ALSO"
diff --git a/lib/readline/doc/readline.3 b/lib/readline/doc/readline.3

index e6f46942b80a61f7d6fa3b4362af1b5386dbdd6a..438da11744f242b7658111995dffebf6b4723627 100644 (file)
--- a/lib/readline/doc/readline.3
+++ b/lib/readline/doc/readline.3
@@ -10,6 +10,19 @@
  .\"
  .TH READLINE 3 "2024 February 5" "GNU Readline 8.3"
  .\"
+.ie \n(.g \{\
+.ds ' \(aq
+.ds " \(dq
+.ds ^ \(ha
+.ds ~ \(ti
+.\}
+.el \{\
+.ds ' '
+.ds " ""\" two adjacent quotes and no space before this comment
+.ds ^ ^
+.ds ~ ~
+.\}
+.
  .\" File Name macro.  This used to be `.PN', for Path Name,
  .\" but Sun doesn't seem to like that very much.
  .\"
@@ -126,7 +139,7 @@ file (the \fIinputrc\fP file).
  The name of this file is taken from the value of the
  .B INPUTRC
  environment variable.  If that variable is unset, the default is
-.IR \(ti/.inputrc .
+.IR \*~/.inputrc .
  If that file  does not exist or cannot be read, the ultimate default is
  .IR /etc/inputrc .
  When a program which uses the readline library starts up, the
@@ -192,7 +205,7 @@ is the name of a key spelled out in English.  For example:
  .nf
  Control-u: universal\-argument
  Meta-Rubout: backward\-kill\-word
-Control-o: \(dq> output\(dq
+Control-o: \*"> output\*"
  .fi
  .EE
  .RE
@@ -212,7 +225,7 @@ expressed on the right hand side (that is, to insert the text
  into the line).
  .PP
  In the second form,
-\fB\(dqkeyseq\(dq\fP:\^\fIfunction\-name\fP or \fImacro\fP,
+\fB\*"keyseq\*"\fP:\^\fIfunction\-name\fP or \fImacro\fP,
  .B keyseq
  differs from
  .B keyname
@@ -225,9 +238,9 @@ are not recognized.
  .RS
  .EX
  .nf
-\(dq\eC\-u\(dq: universal\-argument
-\(dq\eC\-x\eC\-r\(dq: re\-read\-init\-file
-\(dq\ee[11\(ti\(dq: \(dqFunction Key 1\(dq
+\*"\eC\-u\*": universal\-argument
+\*"\eC\-x\eC\-r\*": re\-read\-init\-file
+\*"\ee[11\*~\*": \*"Function Key 1\*"
  .fi
  .EE
  .RE
@@ -240,7 +253,7 @@ is again bound to the function
  is bound to the function
  .BR re\-read\-init\-file ,
  and
-.I "ESC [ 1 1 \(ti"
+.I "ESC [ 1 1 \*~"
  is bound to insert the text
  .Q "Function Key 1" .
  .PP
@@ -261,11 +274,11 @@ an escape character
  .B \e\e
  backslash
  .TP
-.B \e\(dq
-literal \(dq, a double quote
+.B \e\*"
+literal \*", a double quote
  .TP
-.B \e\(aq
-literal \(aq, a single quote
+.B \e\*'
+literal \*', a single quote
  .RE
  .PD
  .PP
@@ -313,7 +326,7 @@ be used to indicate a macro definition.  Unquoted text
  is assumed to be a function name.
  In the macro body, the backslash escapes described above are expanded.
  Backslash will quote any other character in the macro text,
-including \(dq and \(aq.
+including \*" and \*'.
  .PP
  .B Bash
  allows the current readline key bindings to be displayed or modified
@@ -792,7 +805,7 @@ key sequence that quotes the current or previous word in \fBbash\fP:
  .nf
  \fB$if\fP Bash
  # Quote the current or previous word
-\(dq\eC-xq\(dq: \(dq\eeb\e\(dq\eef\e\(dq\(dq
+\*"\eC-xq\*": \*"\eeb\e\*"\eef\e\*"\*"
  \fB$endif\fP
  .fi
  .EE
@@ -1206,7 +1219,7 @@ The actual completion performed is application-specific.
  .BR Bash ,
  for instance, attempts completion treating the text as a variable
  (if the text begins with \fB$\fP), username (if the text begins with
-\fB\(ti\fP), hostname (if the text begins with \fB@\fP), or
+\fB\*~\fP), hostname (if the text begins with \fB@\fP), or
  command (including aliases and functions) in turn.  If none
  of these produces a match, filename completion is attempted.
  .BR Gdb ,
@@ -1440,7 +1453,7 @@ Emacs Standard bindings
  "C-_"  undo
  "\^ " to "/"  self-insert
  "0"  to "9"  self-insert
-":"  to "\(ti"  self-insert
+":"  to "\*~"  self-insert
  "C-?"  backward-delete-char
  .PP
  Emacs Meta bindings
@@ -1487,7 +1500,7 @@ Emacs Meta bindings
  "M-U"  upcase-word
  "M-Y"  yank-pop
  "M-\e"  delete-horizontal-space
-"M-\(ti"  tilde-expand
+"M-\*~"  tilde-expand
  "M-C-?"  backward-kill-word
  "M-_"  yank-last-arg
  .PP
@@ -1525,7 +1538,7 @@ VI Insert Mode functions
  "C-Y"  yank
  "C-["  vi-movement-mode
  "C-_"  vi-undo
-"\^ " to "\(ti"  self-insert
+"\^ " to "\*~"  self-insert
  "C-?"  backward-delete-char
  .PP
  VI Command Mode functions
@@ -1583,7 +1596,7 @@ VI Command Mode functions
  "X"  vi-rubout
  "Y"  vi-yank-to
  "\e"  vi-complete
-"\(ha"  vi-first-print
+"\*^"  vi-first-print
  "_"  vi-yank-arg
  "`"  vi-goto-mark
  "a"  vi-append-mode
@@ -1608,7 +1621,7 @@ VI Command Mode functions
  "x"  vi-delete
  "y"  vi-yank-to
  "|"  vi-column
-"\(ti"  vi-change-case
+"\*~"  vi-change-case
  .RE
  .SH "SEE ALSO"
  .PD 0
@@ -1622,7 +1635,7 @@ VI Command Mode functions
  .SH FILES
  .PD 0
  .TP
-.FN \(ti/.inputrc
+.FN \*~/.inputrc
  Individual \fBreadline\fP initialization file
  .PD
  .SH AUTHORS
diff --git a/lib/readline/doc/rltech.texi b/lib/readline/doc/rltech.texi

index 54f68af90ab69ca866c241997eae524c70585fa2..497cd4d1fbcf7359580b18005b7e38805cb2850e 100644 (file)
--- a/lib/readline/doc/rltech.texi
+++ b/lib/readline/doc/rltech.texi
@@ -2357,6 +2357,7 @@ This is @emph{always} zero when completion is attempted, and can only
  be changed within an application-specific completion function.
  The quoting is effected via a call to the function pointed to
  by @code{rl_filename_quoting_function}.
+@end deftypevar
  
  @deftypevar int rl_attempted_completion_over
  If an application-specific completion function assigned to
diff --git a/lib/readline/history.c b/lib/readline/history.c

index ee52e8297eed27d732044e865e0958aff4fca25b..aade5e33a3274b7963dbc0cfda7b50ee8a6757fb 100644 (file)
--- a/lib/readline/history.c
+++ b/lib/readline/history.c
@@ -1,6 +1,6 @@
  /* history.c -- standalone history library */
  
-/* Copyright (C) 1989-2023 Free Software Foundation, Inc.
+/* Copyright (C) 1989-2024 Free Software Foundation, Inc.
  
     This file contains the GNU History Library (History), a set of
     routines for managing the text of previously typed lines.
@@ -61,24 +61,39 @@ extern int errno;
  #define MAX_HISTORY_INITIAL_SIZE       8192
  
  /* The number of slots to increase the_history by. */
-#define DEFAULT_HISTORY_GROW_SIZE 50
+#define DEFAULT_HISTORY_GROW_SIZE 256
  
  static char *hist_inittime (void);
  
+static int history_list_grow_size (void);
+static void history_list_resize (int);         /* XXX - size_t? */
+static void advance_history (void);
+
  /* **************************************************************** */
  /*                                                                 */
  /*                     History Functions                           */
  /*                                                                 */
  /* **************************************************************** */
  
-/* An array of HIST_ENTRY.  This is where we store the history. */
+/* An array of HIST_ENTRY.  This is where we store the history. the_history is
+   a roving pointer somewhere into this, so the user-visible history list is
+   a window into real_history starting at the_history and extending
+   history_length entries. */
+static HIST_ENTRY **real_history = (HIST_ENTRY **)NULL;
+
+/* The current number of slots allocated to the input_history. */
+static int real_history_size = 0;
+
+/* A pointer to somewhere in real_history, where the user-visible history
+   starts. */
  static HIST_ENTRY **the_history = (HIST_ENTRY **)NULL;
  
  /* Non-zero means that we have enforced a limit on the amount of
     history that we save. */
  static int history_stifled;
  
-/* The current number of slots allocated to the input_history. */
+/* The number of history entries available for user use, starting at the_history.
+   real_history_size - history_size == the_history - real_history */
  static int history_size;
  
  /* If HISTORY_STIFLED is non-zero, then this is the maximum number of
@@ -90,12 +105,59 @@ int max_input_history;     /* backwards compatibility */
     life easier for outside callers. */
  int history_offset;
  
-/* The number of strings currently stored in the history list. */
+/* The number of strings currently stored in the history list. This is
+   always <= real_history_length */
  int history_length;
  
  /* The logical `base' of the history array.  It defaults to 1. */
  int history_base = 1;
  
+/* Compute the number of bits required to store a given nonnegative integer.
+
+   NOTE: _bit_length(0) == 0 */
+static inline unsigned
+_bit_length(unsigned n)
+{
+  /* This implementation is for simplicity, not for performance, but it is
+     fast enough for our purposes here. */
+  unsigned count = 0;
+  while (n)
+    {
+      n >>= 1;
+      count++;
+    }
+  return count;
+}
+
+/* Compute a grow size that adjusts to the size of the history.
+
+   We aim to grow by roughly sqrt(history_size) in order to amortize the cost of
+   realloc() and memmove().  This reduces the total cost of the memmoves from
+   O(N^2) to O(N*sqrt(N)). */
+static int
+history_list_grow_size (void)
+{
+  int width, r;
+  /* Handle small positive values and guard against history_length accidentally
+     being negative. */
+  const int MIN_BITS = 10;
+  if (history_length < (1 << MIN_BITS))
+    return DEFAULT_HISTORY_GROW_SIZE;
+
+  /* For other values, we just want something easy to compute that grows roughly
+     as sqrt(N), where N=history_length.  We use approximately 2^((k+1)/2),
+     where k is the bit length of N.  This bounds the value between sqrt(2N) and
+     2*sqrt(N). */
+  width = MIN_BITS + _bit_length(history_length >> MIN_BITS);
+
+  /* If width is odd then this is 2^((width+1)/2).  An even width gives a value
+     of 3*2^((width-2)/2) ~ 1.06*2^((width+1)/2). */
+  r = (1 << (width / 2)) + (1 << ((width - 1) / 2));
+
+  /* Make sure we always expand the list by at least DEFAULT_HISTORY_GROW_SIZE */
+  return ((r < DEFAULT_HISTORY_GROW_SIZE) ? DEFAULT_HISTORY_GROW_SIZE : r);
+}
+
  /* Return the current HISTORY_STATE of the history. */
  HISTORY_STATE *
  history_get_history_state (void)
@@ -274,6 +336,48 @@ hist_inittime (void)
    return ret;
  }
  
+/* Ensure space for new history entries by resetting the start pointer
+   (the_history) and resizing real_history if necessary. */
+static void
+history_list_resize (int new_size)
+{
+  /* Do nothing there is already enough user space. history_length is always <=
+     real_history_size */
+  if (new_size < history_length)
+    return;
+
+  /* If we need to, reset the_history to the start of real_history and
+     start over. */
+  if (the_history != real_history)
+    memmove (real_history, the_history, history_length * sizeof (HIST_ENTRY *));
+
+  /* Don't bother if real_history_size is already big enough, since at this
+     point the_history == real_history and we will set history_size to
+     real_history_size. We don't shrink the history list. */
+  if (new_size > real_history_size)
+    {
+      real_history = (HIST_ENTRY **) xrealloc (real_history, new_size * sizeof (HIST_ENTRY *));
+      real_history_size = new_size;
+    }
+  the_history = real_history;
+  history_size = real_history_size;
+
+  if (history_size > history_length)
+    memset (real_history + history_length, 0, (history_size - history_length) * sizeof (HIST_ENTRY *));
+}
+
+static void
+advance_history (void)
+{
+  /* Advance 'the_history' pointer to simulate dropping the first entry. */
+  the_history++;
+  history_size--;
+
+  /* If full, move all the entries (and trailing NULL) to the beginning. */
+  if (history_length == history_size)
+    history_list_resize (history_length + history_list_grow_size ());
+}
+
  /* Place STRING at the end of the history list.  The data field
     is  set to NULL. */
  void
@@ -293,9 +397,8 @@ add_history (const char *string)
        if (the_history[0])
         (void) free_history_entry (the_history[0]);
  
-      /* Copy the rest of the entries, moving down one slot.  Copy includes
-        trailing NULL.  */
-      memmove (the_history, the_history + 1, history_length * sizeof (HIST_ENTRY *));
+      /* Advance the pointer into real_history, resizing if necessary. */
+      advance_history ();
  
        new_length = history_length;
        history_base++;
@@ -304,23 +407,20 @@ add_history (const char *string)
      {
        if (history_size == 0)
         {
+         int initial_size;
           if (history_stifled && history_max_entries > 0)
-           history_size = (history_max_entries > MAX_HISTORY_INITIAL_SIZE)
+           initial_size = (history_max_entries > MAX_HISTORY_INITIAL_SIZE)
                                 ? MAX_HISTORY_INITIAL_SIZE
                                 : history_max_entries + 2;
           else
-           history_size = DEFAULT_HISTORY_INITIAL_SIZE;
-         the_history = (HIST_ENTRY **)xmalloc (history_size * sizeof (HIST_ENTRY *));
+           initial_size = DEFAULT_HISTORY_INITIAL_SIZE;
+         history_list_resize (initial_size);
           new_length = 1;
         }
        else
         {
           if (history_length == (history_size - 1))
-           {
-             history_size += DEFAULT_HISTORY_GROW_SIZE;
-             the_history = (HIST_ENTRY **)
-               xrealloc (the_history, history_size * sizeof (HIST_ENTRY *));
-           }
+           history_list_resize (real_history_size + history_list_grow_size ());
           new_length = history_length + 1;
         }
      }
diff --git a/subst.c b/subst.c

index ed7da9d2a5d24cafd1fb57ecbd7f3335d67d6503..fdd056a7e2b98dad5516adbf96ed2473d0ca8046 100644 (file)
--- a/subst.c
+++ b/subst.c
@@ -8536,6 +8536,7 @@ string_var_assignment (SHELL_VAR *v, char *s)
  
    val = (v && (invisible_p (v) || var_isset (v) == 0)) ? (char *)NULL : sh_quote_reusable (s, 0);
    i = var_attribute_string (v, 0, flags);
+  /* i = strlen (flags) */
    if (i == 0 && val == 0)
      return (char *)NULL;
  
@@ -8586,6 +8587,7 @@ array_var_assignment (SHELL_VAR *v, int itype, int quoted, int atype)
      return val;
  
    i = var_attribute_string (v, 0, flags);
+  /* i == strlen (flags) */
    ret = (char *)xmalloc (i + STRLEN (val) + strlen (v->name) + 16);
    if (val)
      sprintf (ret, "declare -%s %s=%s", flags, v->name, val);
diff --git a/variables.c b/variables.c

index 85bdf39aa72e2b45f5b0f2338d523f1545390ced..3520ca8ad05d8f2e482ecf85e58ba2a6f2a67749 100644 (file)
--- a/variables.c
+++ b/variables.c
@@ -5989,6 +5989,7 @@ sv_winsize (const char *name)
  /* Update the value of HOME in the export environment so tilde expansion will
     work on cygwin. */
  #if defined (__CYGWIN__)
+void
  sv_home (const char *name)
  {
    array_needs_making = 1;
author	Chet Ramey <chet.ramey@case.edu>
	Wed, 14 Feb 2024 14:43:03 +0000 (09:43 -0500)
committer	Chet Ramey <chet.ramey@case.edu>
	Wed, 14 Feb 2024 14:43:03 +0000 (09:43 -0500)
CWRU/CWRU.chlog		patch \| blob \| blame \| history
bashline.c		patch \| blob \| blame \| history
doc/bash.1		patch \| blob \| blame \| history
doc/bash.html		patch \| blob \| blame \| history
doc/bash.pdf		patch \| blob \| blame \| history
doc/bashref.dvi		patch \| blob \| blame \| history
doc/bashref.log		patch \| blob \| blame \| history
doc/bashref.ps		patch \| blob \| blame \| history
doc/builtins.0		patch \| blob \| blame \| history
doc/rbash.0		patch \| blob \| blame \| history
execute_cmd.c		patch \| blob \| blame \| history
lib/readline/bind.c		patch \| blob \| blame \| history
lib/readline/display.c		patch \| blob \| blame \| history
lib/readline/doc/history.3		patch \| blob \| blame \| history
lib/readline/doc/readline.3		patch \| blob \| blame \| history
lib/readline/doc/rltech.texi		patch \| blob \| blame \| history
lib/readline/history.c		patch \| blob \| blame \| history
subst.c		patch \| blob \| blame \| history
variables.c		patch \| blob \| blame \| history