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Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

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renice

renice [priority] [options] [target]

Control the scheduling priority of running processes. May be applied to a process, process group, or user (target). A privileged user may alter the priority of other users' processes. priority must, for ordinary users, lie between 0 and the environment variable PRIO_MAX (normally 20), with a higher number indicating increased niceness. A higher niceness value means that the process will run at a lower priority. A privileged user may set a negative priority, as low as PRIO_MIN (normally -20), to speed up processes. See the nice command for setting the scheduling priority for processes when they are initially run.

Options

+num

Specify number by which to increase current priority of process, rather than an absolute priority number.

-num

Specify number by which to decrease current priority of process, rather than an absolute priority number.

-g

Interpret target parameters as process group IDs.

-n increment

Adjust the priority by the value of increment, which is a positive or negative integer.

-p

Interpret target parameters as process IDs (default).

-u

Interpret target parameters as usernames.