mode
Synopsis:
mode [channel] [+/-][Invite][Moderated][Private][Topic]
Description:
Changes a channels mode to the specified mode. Channel may be specified or the
current channel is used.
Invite - only invited users may join the channel.
Moderated - Only moderator+ and channels ops may speak.
Private - Channel will not appear in a whois.
Topic - Any user may change the topic.
Examples:
/mode #Admins +Invite