Getting
On-line Help
Use "man program" to get help about a
specific program. If you don't know the name of the program
but know what it does use man -k subject
(or "apropos subject"). For example, you
don't remember rm deletes a file. You can use "man -k delete"
to get a listing of all commands that have delete in their
short description. In addition to giving you information
about commands, man also gives you information about C
functions. If you are looking for a command make sure you are
looking at a man page for a command and not one for a C
function (unless you are planning to write a program :-) ).
Some commands are shell commands. They do not have a man page
of their own but are documented in the man page for the
shell. For example, Unix supports input redirection, output
redirection and pipes. Unix also supports a number of
advanced features like the ability to take the output of one
program and place it on the command line of another program.
To learn more about these types of features you would need to
see the man pages for sh, csh, tcsh or your favorite shell.
Learn Command
You can interactively learn more about Unix, or vi by using
the learn command. To get started with learn, just type in
learn and follow the on screen instructions.
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