DragonFly On-Line Manual Pages
NICE(1) DragonFly General Commands Manual NICE(1)
nice -- execute a utility at an altered scheduling priority
nice [-n increment] utility [argument ...]
The nice utility runs utility at an altered scheduling priority, by
incrementing its ``nice'' value by the specified increment, or a default
value of 10. The lower the nice value of a process, the higher its
The superuser may specify a negative increment in order to run a utility
with a higher scheduling priority.
Some shells may provide a builtin nice command which is similar or iden-
tical to this utility. Consult the builtin(1) manual page.
$ nice -n 5 date
Execute utility `date' at priority 5 assuming the priority of the shell
# nice -n 16 nice -n -35 date
Execute utility `date' at priority -19 assuming the priority of the shell
is 0 and you are the super-user.
If utility is invoked, the exit status of nice is the exit status of
An exit status of 126 indicates utility was found, but could not be exe-
cuted. An exit status of 127 indicates utility could not be found.
The traditional -increment option has been deprecated but is still sup-
builtin(1), csh(1), idprio(1), rtprio(1), getpriority(2), setpriority(2),
The nice utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
A nice utility appeared in Version 4 AT&T UNIX.
DragonFly 3.9 June 6, 1993 DragonFly 3.9