Lists channel name, user count, and topic information for the network/server you are attached to.  If you omit the optional channel argument, all channels will be listed.  On large networks, the server may disconnect you for asking for a complete list.
Lists channel name, user count, and topic information for the network/server you are attached to.  If you omit the optional channel argument, all channels will be listed.  On large networks, the server may disconnect you for asking for a complete list.