Modify process execution priorities (2)

Question 2

Which of the following commands can you use to set the nice value for a program, if you do not have super user privileges, prior to running the program?

1. nice -n 19
2. renice -n 19
3. nice -n -19
4. renice -n -19
5. nice -19
6. nice –19

Answer 2

1. nice -n 19
   AND
2. nice -19

Nice values are 0-19 for a lower priority, and -1 to -20 for a higher priority. You cannot set a higher priority (-1 to -20) without super user privileges, and nice value 0 is the default. The commands that allow you to set the nice value prior to running the program without super user privileges are: nice -n # and nice -# where # is the nice value.