PART 3: Experiment with starting processes in the background, managing those processes, and changing the priority:

1. remove the echo commands from the looper script
2. start this script in the background by using the & (example: ./looper & )
3. use the jobs (note the job ID with the jobs command) and ps
4. move it to the foreground using the fg command followed by the job number, use CRTL/Z to stop it and return it to the background using the bg command and then kill the process.
5. TO HAND IN: Take a screen shot of the last 10 commands in your history for PART 3
6. change the priority level of a process
7. run your looper2 script in the background and note the NICE and PRI levels using the ps l command
8. issue a renice +15 PID and notice the results
9. start a process with nice n 19 with your command (maybe a looper script), notice the results
10. clean up all of your Zombied and Stopped processes