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