.SH SCRIPT FILES
.B fdisk
-allows reading (by 'I' command) sfdisk compatible script files. The script is
+allows reading (by 'I' command) sfdisk compatible script files. The script is
applied to in-memory partition table, and then it is possible to modify the
partition table before you write it to the device.
.PP
.BR \-Y , " \-\-label\-nested " \fItype
Force editing of a nested disk label. The primary disk label has to exist already.
This option allows editing for example a hybrid/protective MBR on devices with GPT.
-
.TP
.BR \-w , " \-\-wipe "\fIwhen
Wipe filesystem, RAID and partition-table signatures from the device, in order
A common use is to allow use of LABEL= and UUID= tags instead of hard-coding
specific block device names into configuration files.
.P
-The low-level part of the library also allows to extract information about
+The low-level part of the library also allows the extraction
+of information about
partitions and block device topology.
.P
The high-level part of the library keeps information about block devices in a
that printing the hostname should be suppressed in the login: prompt.
See also
.B LOGIN_PLAIN_PROMPT
-below if your server does not allow to configure
+below if your server does not allow the
.B login
-command line.
+command line to be configured.
.TP
\fB\-\-help\fR
Display help text and exit.
.B MOTD_FILE
after the first accessible item in the list.
Note that a directory is one item in this case.
-This option allows to configure
+This option allows
.B login
-semantic to be more compatible with pam_motd.
+semantics to be configured to be more compatible with pam_motd.
.RE
.PP
.B LOGIN_PLAIN_PROMPT
.RI [ user " [" argument ...]]
.SH DESCRIPTION
.B su
-allows to run commands with a substitute user and group ID.
+allows commands to be with a substitute user and group ID.
.PP
When called with no
.I user
.BR \-P , " \-\-pty"
Create pseudo-terminal for the session. The independent terminal provides
better security as user does not share terminal with the original
-session. This allow to avoid TIOCSTI ioctl terminal injection and other
+session. This can be used to avoid TIOCSTI ioctl terminal injection and other
security attacks against terminal file descriptors. The all session is also
possible to move to background (e.g., "su \-\-pty \- username \-c
application &"). If the pseudo-terminal is enabled then su command works
For security reasons
.B su
always logs failed log-in attempts to the btmp file, but it does not write to
-the lastlog file at all. This solution allows to control
+the lastlog file at all. This solution can be used to control
.B su
behavior by PAM configuration. If you want to use the pam_lastlog module to
print warning message about failed log-in attempts then the pam_lastlog has to
.
.TP
.BI \%\-\-delay= seconds
-This option allows to overwrite internally used delay when set clock time. The
+This option can be used to overwrite the internally used delay
+when setting the clock time. The
default is 0.5 (500ms) for rtc_cmos, for another RTC types the delay is 0. If
RTC type is impossible to determine (from sysfs) then it defaults also to 0.5
to be backwardly compatible.
.BR mount (2)
system call, and the flags cannot be mixed with other mount options and operations.
-Since util-linux 2.23 the \fBmount\fR command allows to do more propagation
+Since util-linux 2.23 the \fBmount\fR command can be used to do more propagation
(topology) changes by one mount(8) call and do it also together with other
mount operations. This feature is EXPERIMENTAL. The propagation flags are applied
by additional \fBmount\fR(2) system calls when the preceding mount operations
.TP
.BI \-\-target\-prefix " directory"
Prepend the specified directory to all mount targets.
-This option allows to follow
+This option can be used to follow
.IR fstab ,
-but mount operations is done on another place, for example:
+but mount operations are done in another place, for example:
.RS
.RS
.sp
The execution domains currently only affects the output of \fBuname \-m\fR.
For example, on an AMD64 system, running \fBsetarch i386 \fIprogram\fR
will cause \fIprogram\fR to see i686 instead of x86_64 as the machine type.
-It also allows to set various personality options.
+It can also be used to set various personality options.
The default \fIprogram\fR is \fB/bin/sh\fR.
.PP
Since version 2.33 the
.BR mount (8)
man page.
.PP
-Since version 2.34 \fBumount\fR command allows to perform umount operation also
+Since version 2.34 the \fBumount\fR command can be used to
+perform umount operation also
for fuse filesystems if kernel mount table contains user's ID. In this case fstab
user= mount option is not required.
.PP
Since version 2.35 \fBumount\fR command does not exit when user permissions are
inadequate by internal libmount security rules. It drops suid permissions
-and continue as regular non-root user. It allows to support use-cases where
+and continue as regular non-root user.
+This can be used to support use-cases where
root permissions are not necessary (e.g., fuse filesystems, user namespaces,
etc).
.SH LOOP DEVICE
Try to keep the existing baud rate. The baud rates from the command line are
used when agetty receives a BREAK character. If another baud rates specified
then the original baud rate is also saved to the end of the wanted baud rates
-list. It allows to return to the original baud rate after unexpected BREAKs.
+list.
+This can be used to return to the original baud rate after unexpected BREAKs.
.TP
\-t, \-\-timeout \fItimeout\fP
Terminate if no user name could be read within \fItimeout\fP seconds.
the default issue file and content of the directory is printed after
\fI/etc/issue\fP content. If the \fI/etc/issue\fP does not exist than the
directory is ignored. All files \fBwith .issue extension\fP from the directory are
-printed in version-sort order. The directory allow to maintain 3rd-party
+printed in version-sort order. The directory can be used to maintain 3rd-party
messages independently on the primary system \fI/etc/issue\fP file.
Since version 2.35 additional locations for issue file and directory are
Insert the VARIABLE data from \fI/etc/os-release\fP. If this file does not exist
then fall back to \fI/usr/lib/os-release\fP. If the VARIABLE argument is not
specified, then use PRETTY_NAME from the file or the system name (see \\s).
-This escape code allows to keep \fI/etc/issue\fP distribution and release
+This escape code can be used to keep \fI/etc/issue\fP distribution and release
independent. Note that \\S{ANSI_COLOR} is converted to the real terminal
escape sequence.
.TP
.PP
Since version 2.35
.B script
-supports multiple streams and allows to log input and output to separate
+supports multiple streams and allows the logging of input and output to separate
files or all the one file. This version also supports new timing file
which records additional information. The command
.B scriptreplay \-\-summary
name of this option is \-\-columns; this name is deprecated since v2.30. Note that input
longer than \fIwidth\fP is not truncated by default.
.IP "\fB\-d, \-\-table\-noheadings\fP"
-Do not print header. This option allows to use logical column names on command line, but keep the header hidden when print the table.
+Do not print header.
+This option allows the use of logical column names on the command line,
+but keeps the header hidden when printing the table.
.IP "\fB\-o, \-\-output\-separator\fP \fIstring\fP"
Specify the columns delimiter for table output (default is two spaces).
.IP "\fB\-s, \-\-separator\fP \fIseparators\fP"
.IP "\fB\-R, \-\-table-right\fP \fIcolumns\fP"
Right align text in the specified columns.
.IP "\fB\-T, \-\-table-truncate\fP \fIcolumns\fP"
-Specify columns where is allowed to truncate text when necessary, otherwise
+Specify columns where text can be truncated when necessary, otherwise
very long table entries may be printed on multiple lines.
.IP "\fB\-E, \-\-table-noextreme\fP \fIcolumns\fP"
Specify columns where is possible to ignore unusually long (longer than
projects / thirdparty / util-linux.git / commitdiff
