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nice

Run COMMAND with an adjusted niceness, which affects process scheduling. With no COMMAND, print the current niceness. Niceness values range from -20 (most favorable to the process) to 19 (least …

nice [-n|--adjustment] [-h|--help] [-V|--version] [COMMAND]

Run COMMAND with an adjusted niceness, which affects process scheduling. With no COMMAND, print the current niceness. Niceness values range from -20 (most favorable to the process) to 19 (least favorable to the process).

add N to the niceness (default is 10)
Print help
Print version
[COMMAND]

v(uutils coreutils) 0.2.2