A Linux job is a process that the shell manages.

There are three types of  Linux job statuses:

1. Foreground: When you enter a command in a terminal window, the command occupies that terminal window until it completes. This is a foreground job.

2. Background: When you enter an ampersand (&) symbol at the end of a command line, the command runs without occupying the terminal window. The shell prompt is displayed immediately after you press Return. This is an example of a background job.

3. Stopped: If you press Control + Z for a foreground job, or enter the stop command for a background job, the job stops. This job is called a stopped job.