Linux man pages can be overwhelming to people who are just learning how to work on the command line, but here we’ll look at a way to quickly prepare a cheat sheet for a series of commands. These cheat sheets will tell new Linux users enough to get started and know what man page to read when they want to know more.
To get started, we’ll take a look at series of commands that any Linux newbie would need to learn:
alias cmp export less tail whereis
apropos comm grep more tar who
cat dd head passwd top whoami
chmod df kill pwd unzip zip
chown diff killall sort whatis
Next, we use a series of commands that will provide short descriptions of these commands. These are help -d, whatis, and a man command that selects only the command description from the man pages.
Source:: Network World – Linux