In order to run the program, you need to have two files: usermap.txt, which is the output of the cat /etc/passwd command,
						    and file_ls, which is the output of the ls -la –time-style=full-iso command


The program has three functions:
	load *archivename* - creates an archive with all the files in file_ls
	list *archivename* - lists the files in the archive
	get *archivename* *filename* - extracts the content of the *filename* file and prints it
	(use echo -e “get archivename filename.jpg\nquit” | ./my_tar > result.jpg for binary files like photos)
	quit - closes the program