NICE(1)NICE(1)NAME
nice, nohup - run a command at low priority (sh only)
SYNOPSISnice [ -number ] command [ arguments ]
nohup command [ arguments ]
DESCRIPTION
Nice executes command with low scheduling priority. If the number
argument is present, the priority is incremented (higher numbers mean
lower priorities) by that amount up to a limit of 20. The default
number is 10.
The super-user may run commands with priority higher than normal by
using a negative priority, e.g. `--10'.
Nohup executes command immune to hangup and terminate signals from the
controlling terminal. The priority is incremented by 5. Nohup should
be invoked from the shell with `&' in order to prevent it from
responding to interrupts by or stealing the input from the next person
who logs in on the same terminal.
FILES
nohup.out standard output and standard error file under nohup
SEE ALSOcsh(1), setpriority(2), renice(8)DIAGNOSTICS
Nice returns the exit status of the subject command.
BUGS
Nice and nohup are particular to sh(1). If you use csh(1), then
commands executed with ``&'' are automatically immune to hangup signals
while in the background. There is a builtin command nohup which
provides immunity from terminate, but it does not redirect output to
nohup.out.
Nice is built into csh(1) with a slightly different syntax than
described here. The form ``nice +10'' nices to positive nice, and
``nice -10'' can be used by the super-user to give a process more of
the processor.
4th Berkeley Distribution May 8, 1986 NICE(1)
