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NICE(1) BSD 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 scheduling priority.
The superuser may specify a negative increment in order to run a utility with a higher
Some shells may provide a builtin nice command which is similar or identical to this util-
ity. Consult the builtin(1) manual page.
The PATH environment variable is used to locate the requested utility if the name contains
no '/' characters.
Execute utility 'date' at priority 5 assuming the priority of the shell is 0:
nice -n 5 date
Execute utility 'date' at priority -19 assuming the priority of the shell is 0 and you are
nice -n 16 nice -n -35 date
If utility is invoked, the exit status of nice is the exit status of utility.
An exit status of 126 indicates utility was found, but could not be executed. An exit sta-
tus of 127 indicates utility could not be found.
builtin(1), csh(1), idprio(1), rtprio(1), getpriority(2), setpriority(2), renice(8)
The traditional -increment option has been deprecated but is still supported.
The nice utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
A nice utility appeared in Version 4 AT&T UNIX.
BSD June 6, 1993 BSD
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