nohup—makes commands immune to hangups and quits
/usr/bin/nohup command [ arguments ]
There are three distinct versions of nohup. nohup is built in to the C shell and is an executable program available in /usr/bin/nohup when using the Bourne shell. The Bourne shell version of nohup executes commands such that it is immune to HUP (hangup) and TERM (terminate) signals. If the standard output is a terminal, it is redirected to the file nohup.out. The standard error is redirected to follow the standard output. The priority is incremented by five. nohup should be invoked from the shell with & in order to prevent it from responding to interrupts or input from the next user.
Example A.41.
nohup lookup &
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Explanation
The lookup program will run ...
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