In-Game Commands

I'm requesting some help in adding some in-game commands, if anyone can it would be greatful! I'm trying to setup some commands that players/admin can use while playing...
ie; /who (or #who) - for displaying a list of who is connected/online.

I couldn't find a resource/tut that explained where/how to add them. I know how to script what I want torque to do, I just need a little push in the right direction :) Thanks