but requires finding out what the commands are.
Below a bare minimum, to get started.
.SS Login
-In order to start working, you probably first have to login,
-that is, give your username and password.
-See also
-.BR login (1).
+In order to start working, you probably first have to open a session by
+giving, your username and password.
The program
-.I login
+.BR login (1)
now starts a
.I shell
(command interpreter) for you.
See also
.BR ash (1),
.BR bash (1),
+.BR chsh (1),
.BR csh (1),
-.BR zsh (1),
-.BR chsh (1).
+.BR dash (1),
+.BR ksh (1),
+.BR zsh (1).
+.LP
+A session might go like:
.LP
-A session might go like
-
.RS
.nf
.RB "knuth login: " aeb
$
.fi
.RE
-and here typing Control-D ended the session.
+.LP
The
.B $
here was the command prompt\(emit is the shell's way of indicating
.I cat
will show the contents of a file.
(The name is from "concatenate and print": all files given as
-parameters are concatenated and sent to "standard output", here
+parameters are concatenated and sent to "standard output"
+(see
+.BR stdout (3)),
+here
the terminal screen.)
.LP
The command
.I cp
(from "copy") will copy a file.
-On the other hand, the command
+.LP
+The command
.I mv
-(from "move") only renames it.
+(from "move"), on the other hand, only renames it.
.LP
The command
.I diff
The command
.I cd
changes the current directory.
-Try "cd /" and "pwd" and "cd" and "pwd".
+.LP
+Try alternatively
+.I cd
+and
+.I pwd
+commands and explore
+.I cd
+usage: "cd", "cd .", "cd ..", "cd /" and "cd ~".
.SS Directories
The command
.I mkdir
.BR bash (1),
.BR chsh (1),
.BR csh (1),
+.BR dash (1),
+.BR ksh (1),
.BR locate (1),
.BR login (1),
.BR man (1),
+.BR su (1),
.BR xterm (1),
.BR zsh(1),
.BR wait (2),
+.BR stdout (3),
.BR man-pages (7),
-.BR standards (7)
+.BR standards (7),
+.BR shutdown (8)