mesg n == stops heys to a screen.
mesg y == allows them again.

Screen == a program that allows you to have multiple windows.

Commands:
	Ctrl+a +c == Opens a new window.
	Ctrl+a +a == change to last window.
	Ctrl+a +d == Detach screen.
	Screen -dr == re-attaches a screen which has been detached.
	
map == shadow map (this is an alias, I've put it in your zshrc file. call it by typing map)
	useful for stalking.

irssi:
	/server irc.redbrick.dcu.ie == connects to the redbrick irc server
	/j lobby == duh.
	/j intersocs == see above.
	ctrl+z == detach the irssi session (works like detaching a screen)
	fg == re-attaches it.

aliases and friends:
	nano .zshrc == opens the file whic contains the aliases.
	nano .friends == opens the friends file.
	
	Adding an alias:
			Open the file and type: "alias <name>="<function>"
			remember to source the file with "sz" or your new alias won't work.
	
	Adding a friend: 
			Open the friends file and just add the username as it appears on rbusers. That's it really.