channel

channel[/switches] [channel] [= message]
The commands to join and leave a channel are:
channel/sub [channel] = [alias]. Note that you MUST put in an alias.
channel/unsub [channel]

switches:
/list - show all channels you are subscribed to
/all - show all available channels
/sub - subscribe to channel(s)
/unsub - unsubscribe from channel(s)
/alias - set alias(es) for a channel
/unalias - remove an alias
/who - show who is subscribed to a channel
/history - show channel history
/mute - mute a channel
/unmute - unmute a channel
/create - create a new channel (staff only)
/destroy - remove a channel (staff only)
/desc - set channel description (staff only)
/lock - add lock strings to a channel (staff only)
/unlock - remove lock strings from a channel (staff only)
/ban - ban user from channel (staff only)
/unban - remove ban from user (staff only)
/boot - remove user from channel (staff only)
/view - show detailed channel information (staff only)
/purge - purge all channel aliases

Example:
pub Hello! (using an alias)
channel/sub public = pub (set alias)
channel/unsub public (unsubscribe)
channel/alias pub = public (set alias)
channel/unalias pub (remove alias)
channel/who public (show subscribers)
channel/history public (show history)
channel/mute public (mute channel)