Causes the server to terminate your current session. You are free to log back on after issuing this command.
Example:
/quit I'll be back in awhile.
/quit
This is much like part, except that you leave the network instead of just a room. Everyone you are in a room with will see you leave. People who you are talking to with private messages will not know you have left unless they have you on their watch or buddy list. They will receive a no such nick/channel error message if they try to message you after you have left, unless someone else starts using your nick. It is generally best to inform people you are talking to that you are leaving before you quit.