/mode #channel|nickname [[+|-]modechars [parameters]]

This is a powerful command that gives channel operators control of a channel and the users on it.



               Channel modes

               ------------------------

       ModeChar        Effects on channels

       ~~~~~~~~        ~~~~~~~~~~~~~~~~~~~

       b <person>        ban somebody, <person> in "nick!user@host" form

       i                channel is invite-only

       l <number>        channel is limited, <number> users allowed max

       m                channel is moderated, (only chanops can talk)

       n                external /MSGs to channel are not allowed

       o <nickname>        makes <nickname> a channel operator

       p                channel is private

       s                channel is secret

       t                topic limited, only chanops may change it

       k <key>                set secret key for a channel



               User modes

               -------------------

       ModeChar        Effects on nicknames

       ~~~~~~~~        ~~~~~~~~~~~~~~~~~~~~

       i                makes you invisible to anybody that does

                       not know the exact spelling of your nickname

       o                IRC-operator status, can only be set

                       by IRC-ops with OPER

       s                receive server notices

       v                gives a user a voice on a moderated channel



Here a few examples of the MODE command:



To give someone op status:    /mode #channelname +o nickname



Giving someone op status means giving them control over the channel and the users on it. Give this out sparingly and to people you trust.



To op several people:   /mode #channelname +ooo nick1 nick2 nick3



To de-op someone:    /mode #channelname -o nickname



To ban someone:  /mode #channelname +b nickname (or user address)



To unban someone:  /mode #channelname -b nickname (or user address)



To make a channel invite only:  /mode #channelname +i



You must now invite a user for them to be able to join your channel.