LAB 54: bash SHELL-FIRST SCRIPT

Write a script called greetme that will do the following:
1. Contain a comment section with your name, the name of this script, and the purpose of this script.
2. Greet the user.
3. Print the date and the time.
4. Print a calendar for this month.
5. Print the name of your machine.
6. Print the name and release of this operating system (cat /etc/motd).
7. Print a list of all files in your parent directory.
8. Print all the processes root is running.
9. Print the value of the TERM, PATH, and HOME variables.
10. Print your disk usage (du).
11. Use the id command to print your group ID.
12. Print Please, could you loan me $50.00?
13. Tell the user Good-bye and the current hour (see man pages for the date command).
Make sure your script is executable.
```
chmod +x greetme
```
What was the first line of your script? Why do you need this line?