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OpenDarwin 7.2.1 - man page for nice (opendarwin section 1)

NICE(1) 			   BSD General Commands Manual				  NICE(1)

NAME
     nice -- execute a utility at an altered scheduling priority

SYNOPSIS
     nice [-n increment] utility [argument ...]

DESCRIPTION
     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
     scheduling priority.

     Some shells may provide a builtin nice command which is similar or identical to this util-
     ity.  Consult the builtin(1) manual page.

ENVIRONMENT
     The PATH environment variable is used to locate the requested utility if the name contains
     no '/' characters.

EXAMPLES
     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
     the super-user:

	   nice -n 16 nice -n -35 date

DIAGNOSTICS
     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.

SEE ALSO
     builtin(1), csh(1), idprio(1), rtprio(1), getpriority(2), setpriority(2), renice(8)

COMPATIBILITY
     The traditional -increment option has been deprecated but is still supported.

STANDARDS
     The nice utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').

HISTORY
     A nice utility appeared in Version 4 AT&T UNIX.

BSD					   June 6, 1993 				      BSD


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