Some networks support /ison, which will return in a raw code that a user is online. For example:

/ison $me

<- :irc.dynamix.com 303 KingTomato :YourName

Versus

/ison SomeBogusName

<- :irc.dynamix.com 303 KingTomato :

Which means no such user.



-KingTomato