The User Daemon (userd) and the ROTSE User Shell (rush)

The User Daemon (userd) is the daemon that takes over issuing commands when the telescope system is put into ``manual'' mode. It is a skeleton daemon whose sole purpose is to interface between the ROTSE User Shell (rush) and the daq system. rush is a modified bourne shell (based on Byron Rakitzis' rc shell) with specific ROTSE commands built in to operate the hardware. While in ``auto'': mode, rush is also useful for monitoring the status of the system in real-time. Specifics on how to use rush are in Section 2.5.