This is a nowplaying script for moc and irssi. It also enables you to control moc from irssi. I recommend applying my patch to moc, as it's the only way to determine whether you turned shuffle/repeat on or off.
/mocnp prints the currently played song in the active channel /play starts playing, if moc's in state "pause" /pause pause the current song /start starts moc if it's not running or if it's in mode "stop" /stop stops moc /next next song /prev previous song /shuffle turns shuffle on/off (requires >=mocp 2.5) /repeat turns repeat on/off (requires >=mocp 2.5)