Shows all the public rooms on the server. You can set a mask to limit the number of channels that are returned, in the example below we ask for any rooms that start with the word support. Private or secret rooms will not show up on the list.
Example:
/list support*
/list >10
/list <20
/list
The room list may be very large, depending on the network. You can use the command /lusers to see how many rooms are on the network. The list command will take some time to display.