PRIVMSG

The PRIVMSG command is used to send private messages to other users or channels.
Sending a Message
Usage: PRIVMSG <target> :<message>

Sends a private message to the specified <target>, which can be a user or a channel.

Sending a Message to Members of a Channel
Usage: PRIVMSG <channel> [<nicklist>] :<message>

Sends a private message to the users specified in the <nicklist> on the given <channel>. The <nicklist> is a comma-separated list of nicknames. When sending messages to users on a channel using a nicklist, the targeted users will not receive a list of other recipients.


(See sections 4.4.1 of RFC 1459, 3.3.1 of RFC 2812 and 5.11 of IRCX)