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We are now at the end of this lesson and at
the end of these lessons where we learn so many commands.

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I like giving you a command overview. So what have we
seen? We talked about Whoami, which is showing your current username.

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LS can be used to list files
and contents of directories, IPA is showing

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your IP address and CAT or
allows you to read a text file.

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PASSWD allows you to set
your password, and even if you

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have super user privileges, you
can change passwords for other users.

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Touch is awesome if you want to
verify your writability. So are you allowed to

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write in a specific location or not?
Use Touch to create an empty file.

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PWD is printing the working
directory and MAN is the

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system that provides help for
all of these Linux commands.

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Then there is apropos, which is equivalent to man
K. Use it. If you are looking for a

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man page and you don't know which one to
use, then just use apropos followed by a keyword.

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MANDB is the administrator command that
allows you to generate the mandb.

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And finally the info command is an alternative if
MAN indicates that the information is not maintained here. Every

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now and then you might have to check it
up in info, but fortunately current Linux distributions often have

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enough documentation already in the man page, which means
that you don't have to use info that often.