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Managing Users and Groups in Linux

Linux is a multi-user operating system by default. System users, human users, groups and a lot more.

As a sysadmin, you should know how to get details of users on the system, modify their access, change their passwords or set a password policy and manage their groups.

You'll learn about various Linux commands that allow you to manage user accounts and groups in this section.

I recommend reading a little on the file ownership and groups. This will give you a better understanding on groups at least.

Linux File Permissions and Ownership Explained with Examples
Linux file permissions explained in simpler terms. Also learn how to change the file permissions and ownership in Linux in this detailed beginner’s guide.