`nice': Run a command with modified scheduling priority
`nice' prints or modifies the scheduling priority of a job.
nice [OPTION]... [COMMAND [ARG]...]
If no arguments are given, `nice' prints the current scheduling
priority, which it inherited. Otherwise, `nice' runs the given COMMAND
with its scheduling priority adjusted. If no ADJUSTMENT is given, the
priority of the command is incremented by 10. You must have
appropriate privileges to specify a negative adjustment. The priority
can be adjusted by `nice' over the range of -20 (the highest priority)
to 19 (the lowest).
Because most shells have a built-in command by the same name, using
the unadorned command name in a script or interactively may get you
different functionality than that described here.
The program accepts the following option. Also see Note: Common
Add ADJUSTMENT instead of 10 to the command's priority.
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