Find out what a command does ❓

Find out what a command does ❓

At the command line, run:

whatis <command>

This will give you a one-line summary of a command.

If whatis doesn’t work, the whatis database may not be built yet. To build the whatis database, enter this:

/usr/sbin/makewhatis

whoami
Stefan Pejcic
Join the discussion

I enjoy constructive responses and professional comments to my posts, and invite anyone to comment or link to my site.