1. Create the following directory structure in your home directory:
	PE/
		a/
		b/
		c/
		d/
			qux/
			quux/
		directory1/
		directory2/
		directory3/
		directory4/
		directory5/
			foo/
			bar/
			baz/

2. What is the underlying device of the root file system? Place the answer in ~/PE/answer2.txt (on a single line, separated by spaces)

3. Copy /etc/fstab to ~/PE/directory5/foo

4. Copy /etc/conf.d to ~/PE/directory5/bar

5. Delete all files in ~/PE/directory5/bar/conf.d that start with the letter 'n'

6. Move ~/PE/directory5/bar/conf.d/hostname to ~/PE

7. Delete ~/PE/d/quux

8. What command would you use to update the last modified time of ~/PE? Place your answer in ~/PE/answer8.txt.

9. How many lines does /etc/inittab contain? Put your answer in ~/PE/answer9.txt.

10. Merge /etc/fstab and /etc/mtab (in that order) into ~/PE/answer10.txt

11. Determine the usernames of all accounts with a 'nologin' shell and put the list of usernames (and only usernames) in ~/PE/answer11.txt. Hint: look at the 'cut' command

12. What is the PID of 'init'? Place the answer in ~/PE/answer12.txt

13. What is the hardware address of the first hop when accessing www.google.com? Place your answer in ~/PE/answer13.txt

14. Copy /etc/fstab to ~/PE and prevent other users from reading or modifying the copy

15. Put the last 10 lines of /var/log/messages into ~/PE/messages. What command would you use to follow the contents of /var/log/messages in real time? Place the answer in ~/PE/answer15.txt

16. Place a list of all files underneath /etc that begin with the letter 'b' in ~/PE/answer16.txt. Log all errors to ~/PE/error16.txt

17. Create the following directory structure in ~/PE:
	1/
		10/
		11/
		12/
		13/
		14/
		15/
	2/
		10/
		11/
		12/
		13/
		14/
		15/
	3/
		10/
		11/
		12/
		13/
		14/
		15/
	4/
		10/
		11/
		12/
		13/
		14/
		15/
	5/
		10/
		11/
		12/
		13/
		14/
		15/

18. Create a compressed archive of /etc/init.d and its contents named init.d.tar.gz and place it in ~/PE

19. Copy ~/PE/init.d.tar.gz to your local machine and verify its contents using the file's hash. Put the hash in ~/PE/answer19.txt

20. What command would you use to force the SSH server (sshd) to stop? Place the answer in ~/PE/answer20.txt. DO NOT run the command.