Usage : quit
This command is used to disconnect from POD.
Usage : say <message>
This command is only needed when in COMMAND mode, since in
SPEECH mode everything you type that isn't a command is
interpreted as speech.
Usage : rmail
This lists out your mailbox to you.
Usage : cls
This clears the screen by printing 50 newlines which should be enough
for even the largest xterms.
Usage : suicide <user password>
As its name suggests this command will delete your account on
the talker. I doubt it will get used much but its there if
someone needs it for whatever reason.