Working as Root Because Debian is a multiuser system, it's designed to keep any one user or program from breaking the entire system.
"Debian GNU/Linux: Guide to Installation and Usage"
John Goerzen and Ossama Othman
Managing Your Identity Unix-like systems are multiuser, and so you have your own electronic identity as a user on the system.
"Debian GNU/Linux: Guide to Installation and Usage"
John Goerzen and Ossama Othman