5. [5] What is the difference between the paths "." "..", and ~"? What does the path "I' refer to when not 6. [10] Which command would you use to find the ID (pid) for a running process? which command you will 7. [10] Write a single command that will return every username in the system in alphabetical order. [You 8. [5] What is the difference between "sudo" and "su root"? preceded by anything? use to kill a running process using its ID? may chain commands using piping and redirects] 9. [10] How would you make a program or script execute on a schedule or set interval? E.g. Run this program once every 30 minutes or every day at midnight. 10. [40] Write a shell script that only prints the even numbered lines of each file in the current directory except for the script itself. The output should be filename: line for each even numbered line. You do not need to print line numbers