rtundo,

Squash currently has a control file, ( /drive0/squash/control ) that can be written to do various user interface commands. I only use it to easily bridge squash with my joystick at home. I also plan on upgrading this feature, which currently uses an very unreliable and fidgety FIFO, with a socket. The socket should be more reliable, but you won't be able to do the cool "echo pause >> control".

Sorry for the late reply, I've been working hard at school -and- trying to get squash ready for 1.0 (which has taken way too long!).