Users and Processes

• Every process running on a Linux system, executes on behalf of a given User.
• Thus, the process may do what this User is allowed to do.
• The process may access the files that its User-owner may access...
• ...Except when it can access other files, as we will see later.
• Every process has unique process ID (= pid), which can be used to control the process, as we will see soon.

Originally written by guy keren