IRC servers have an interface you can use with slashed commands. Many servers have a setup where you can just type /help and get a list of available commands. You can also prefix most server/bot commands with "HELP" to get an overview. IRC usually is not case sensitive. Common useful commands are listed here:
| Register new account | /msg NickServ HELP REGISTER |
| Join a channel | /join #channel |
| Find out where a user connects from | /whois username |
| Channel | Description |
| ##linux | inofficial general Linux help channel |
| #archlinux | Arch Linux |
| ##MacOSX | Mac OS X, Apple in general |
| #geekhack | mechanical keyboards, mice, hardware, general chitchat |
| ##rtlsdr | Realtek Software Defined Radio |
| ##windows | Microsoft's OS |