DragonFly On-Line Manual Pages


NICE(1) 	       DragonFly 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 iden- tical to this utility. Consult the builtin(1) manual page.

EXAMPLES

$ nice -n 5 date Execute utility `date' at priority 5 assuming the priority of the shell is 0. # 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.

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 exe- cuted. An exit status of 127 indicates utility could not be found.

COMPATIBILITY

The traditional -increment option has been deprecated but is still sup- ported.

SEE ALSO

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

STANDARDS

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

HISTORY

A nice utility appeared in Version 4 AT&T UNIX. DragonFly 4.1 June 6, 1993 DragonFly 4.1