NAME
nice —
execute a command at a low scheduling
priority
SYNOPSIS
nice |
[-number]
command [arguments] |
DESCRIPTION
Nice runs command at a low
priority. (Think of low and slow). If
-number is specified, and if it
is greater than or equal to 10 (the default), nice
will execute command at that priority. The upper bound,
or lowest priority that nice will run a command is 20.
The lower bounds or higher priorities (integers less than 10) can only be
requested by the super-user. Negative numbers are expressed as
--number.
The returned exit status is the exit value from the command
executed by nice.
SEE ALSO
HISTORY
A nice command appeared in
Version 6 AT&T UNIX.
BUGS
Nice is particular to
sh(1). If you use
csh(1), then commands executed with ``&'' are automatically
immune to hangup signals while in the background.
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.