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The nice/renice command

The nice/renice commands is used to modify the priority of the program to be executed. The priority range is between -20 and 19 where 19 is the lowest priority.

Examples:

1. Running cc command in the background with a lower priority than default (slower):

nice -n 15 cc -c *.c &

2. Increase the priority to all processes belonging to group "test":

renice --20 -g test

Syntax:

nice [  -Increment|  -n Increment ] Command [ Argument ... ]

Flags :

Short Flag	Long Flag	Description
-Increment	-	Increment is the value of priority you want to assign.
-n Increment	-	Same as -Increment