Linux is a multi-user environment, which means more than one user can use the system at one time. Granted, that mostly takes the form of console access (via SSH), because you can't easily have two ...
User accounts can be assigned to one or more groups on Linux. You can configure file permissions and other privileges by group. For example, on Ubuntu, only users in the sudo group can use the sudo ...
How to Create Users and Groups in Linux from the Command Line Your email has been sent Here's a quick guide to adding users and groups, and then how to add users to groups, all from the command line ...