nice, nohup \- run a command at low priority (\fIsh\fR only)
with low scheduling priority.
argument is present, the priority is incremented (higher
numbers mean lower priorities) by that amount up to a limit of 20.
The super-user may run commands with
priority higher than normal
by using a negative priority,
immune to hangup and terminate signals from the controlling terminal.
The priority is incremented by 5.
should be invoked from the shell with `&' in order to
prevent it from responding to interrupts by or
the next person who logs in on the same terminal.
The syntax of nice is also different.
nohup.out standard output and standard error file under
returns the exit status of the subject command.
then commands executed with ``&'' are automatically immune to hangup
signals from the controlling terminal.
There is a builtin command
which provides immunity from terminate, but it does not
with a slightly different syntax than described here \-
``nice +10'' nices to positive nice, and ``nice -10'' used
by the super-user nices to negative priority.