If only USERHOST nickname is supplied the server will be queried for information about that person. It will return something in the format:
*** Daemon is frechett@spot.Colorado.EDU (Is an IRC operator)
If -cmd command is added then it will parse the returned line
just as though it were an ON or an ALIAS.
Parameters are:
$0 nickname
$1 '+' if server operator, '-' otherwise
$2 '+' if marked away, '-' if here
$3 username
$4 hostname
Note: Something you may run into if you use this command within an alias or on is the following. Take the following example.
alias bonk userhost $0 -cmd echo \($$*\)
When bonk is called, $0 is expanded to a nickname, and $$* changes to
$* to be used by userhost -cmd. However, since the entire expression
is parsed twice, the \'s are eaten the first time leaving ($*) which
will never expand. Thsu to make the above alias work, it has to be:
alias bonk userhost $0 -cmd echo \\\($$*\\\)
On the first pass it becomes userhost nick -cmd echo \($*\)
and on the second pass when the -cmd part is executed it
expands and executes echo (contents of $*)
This is NOT a special case or a bug. It is just an added level of
processing...
See Also: expressions (under Special Cases at the end)