Linux Command - Help

The linux help command displays breif information about built in commands. Some of these commands may not have man pages but you can find documentation with help. The help command itself is a BASH built in command.

Get info and usage for the help command itself:

help help

Show list of commands that you can get help for:

help

Options:

-d	output short description for each topic
-m	display usage in pseudo-manpage format
-s	output only a short usage synopsis for each

Get the description, usage, and manpage like output for the bg command:

help -d bg
help -s bg
help -m bg

Same thing, but get documentation for break command:

help -d break
help -s break
help -m break