Learn how to manage users and groups on the Linux Operating System.
Learn how to create, modify and delete users. Also learn about the skeleton directory and how to manage expiration times per user.
Learn how to add, modify and delete groups. Also learn about all the options that come with group management.
Learn all the vital files that Linux uses to manage users and groups including /etc/shadow, /etc/default/useradd, /etc/group, and /etc/gshadow,