14. Close the terminal, and open a new terminal session.
15. Create a new directory ~/backups
16. Accomplish the following steps by typing on the command line within a period of a couple minutes so the timestamps will be similar:

• Navigate to ~/backups
• ls ~/Documents
• Run your doc-backup script.
• tar -tf to see the contents. (If this produces a large amount of output, be sure you cut it down to a few lines in the terminal capture later.)
• Run doc-backup a second time.
• cat ~/scripts/doc-backup to show your script code
• Execute the date +%y%m%d-%s command to get a timestamp on the command line.