Returns the userhost specification belonging to `NICK'. AMIRC keeps an internal list of the userhosts of every nick that occured yet. You can query this database with this command. Note however that it is possible that the userhost isn't in the database yet; this command will *not* query the server then, but simply return an error.
RELATED TOPICS: See RX_GETMYNICK
Examples:
"USERHOST Olli";"ECHO" result