$channel(<channel name>)

This function returns some extended information about who's on a channel. It returns a sorted list of nicknames prepended by two characters. If a <channel name> is not supplied, the current channel will be assumed.

Space-separated list in the form: OVnick, where O is channel operator status and V is channel voice status. Their values are as follows.

O:    '@' if chanop, '%' if half-op, '.' if not, '?' if we don't know.
V:    '+' if voice,  '.' if not, '                ?' if we don't know.

This is mostly useful for writing scripts that format and display the nicks of everyone in a channel.