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Man Pages


Manual Reference Pages  -  NICE (1)

NAME

nice - execute a utility at an altered scheduling priority

CONTENTS

Synopsis
Description
Environment
Exit Status
Examples
Compatibility
See Also
Standards
History

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 utility. Consult the builtin(1) manual page.

ENVIRONMENT

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

EXIT STATUS

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 status of 127 indicates utility could not be found.

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

COMPATIBILITY

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

SEE ALSO

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

STANDARDS

The nice utility conforms to -p1003.1-2001.

HISTORY

A nice utility appeared in AT&T v4 .
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