Linux is a multi-user operating system. What does that mean? Like all good operating systems, you can have multiple user accounts on one machine. You can also have more than one user logged in at once ...

Follow ZDNET: Add us as a preferred source on Google. The usermod command is short for user modification, and, as the name implies, allows you to modify various aspects of a user account. For a Linux ...

To add the user “dhart” to the group “secteam” on the system, you could do this: $ sudo usermod -a -G secteam ghart The group must already exist. To change dhart’s username to dbell, you could use the ...

Editor's Note: This content is excerpted from Chapter 11 of Linux Debugging and Performance Tuning: Tips and Techniques, authored by Steve Best, ISBN 0-13-149247-0 ...