Syntax: %bLIST <pattern> [options]%b

Lists all registered nicknames that match %b<pattern>%b.
Nicknames that have %bSET PRIVATE%b ON, will not be
displayed.

Valid filter options are:
-b: list forbidden nicknames only
-n: only list nicknames with noexpire flag set
-o: only list registered nicknames that are currently online
-p: list private nicknames only

Example: %bLIST *nick*%b
           Lists all nicknames that contain %bnick%b
