"Switch to another console. Linux lets you use
"virtual consoles" to log on to multiple sessions simultaneously,
so you can do more than one operation or log on as another user.
Logging on to another virtual console is like sitting down and
logging in at a different physical terminal, except you are
actually at one terminal, switching between login sessions."
"Temporarily use a different shell. Every user
account has a shell associated with it. The default Linux shell is
bash; a popular alternative is tcsh. The last field of the password
table (/etc/passwd) entry for an account contains the login shell
information. You can get the information by checking the password
table, or you can use the finger command."
"Print a man page. Here are a few useful tips
for viewing or printing manpages:
To print a manpage, run the command:
man | col -b | lpr
The col -b command removes any backspace or other characters
that would make the printed manpage difficult to read."