5. Write a Unix command (in your ~/216 directory) that will copy the file ex.txt present in the ~/tmp directory to: a. The current directory. b. Your home directory. c. To the parent's directory of the current directory. d. To the root directory (you can assume you can copy to the root directory). 6. Write a Unix command that will copy the folder commands_info present in the lecture_examples folder of the ~/216public directory to your ~/216 directory of your home directory. The command should work when executed from any directory (e.g., you cannot assume your current directory is /216)