IRSSI [http://www.irssi.org/ irssi] is a command-line [http://en.wikipedia.org/wiki/Internet_Relay_Chat IRC ] client popular with many developers. By using irssi in conjunction with the Unix [http://en.wikipedia.org/wiki/GNU_Screen '''screenGNU Screen''' ] program you can create one or more shells that will exist even when you logout. This is useful when you move between computers, but want to reconnect to irssi where you last left-off.