What is the purpose of the nice value in Linux process management? How can you view and adjust the nice value of a process using the `ps`, `nice`, and `renice` commands?
The nice value helps determine the priority of a process, by default the nice value of a program is 0. The higher the nice value, the nicer the process is, and the higher priority it gets. Programs that run for longer periods have a lower priority. Programs, that pause for a while are higher priority and nicer programs. We can view the nice values of an active process by using ps -l or ps -f(for long output). The nice value of a program is set by using nice and can be adjusted using renice.
