For that, you create the group, add users, and then change the file or directory ownership to the new group. Creating a new group is even easier than creating a user.

Learn the basics of directory management in Linux using the command line tool.

If you're new to Linux administration, Jack Wallen shows you a skill you'll definitely need to have--creating directories from the command line interface.

Here's a quick guide to adding users and groups, and then how to add users to groups, all from the command line on the Linux platform.