/help = Shows a list of all commands
/fixme = Use this if you get stuck in the ground, it will bring you to ground level. (you can also use it with autorun on to make you jump forward, if you get stuck in a house or something.)
/safemove = This will bring you back to the church in the starting town.
/corpse = brings all of your nearby corpses to your feet.
/logout = logs out
/save = save your character
/teleme = teleports you a small distance from where your character currently is
/f = send a message to your faction members
/t name = replace name with the char you wish to send a message to
/s = shout a message