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Linux in a Nutshell, Fourth Edition by Aaron Weber, Stephen Figgins, Ellen Siever

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Name

renice

Synopsis

                  renice [priority] [options] [target]

Control the scheduling priority of various processes as they run. 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 privileged user may set a negative priority, as low as PRIO_MIN (normally -20), to speed up processes.

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.

-p

Interpret target parameters as process IDs (default).

-u

Interpret target parameters as usernames.

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