$ curl cheat.sh/

# renice
# Alters the scheduling priority/niceness of one or more running processes.
# Niceness values range from -20 (most favorable to the process) to 19 (least favorable to the process).
# More information: <https://manned.org/renice>.

# Change priority of a running process:
renice -n niceness_value -p pid

# Change priority of all processes owned by a user:
renice -n niceness_value -u user

# Change priority of all processes that belong to a process group:
renice -n niceness_value --pgrp process_group

$

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