What command is used to bring a background process to the foreground?

The command used to bring a background process to the foreground is indeed "fg." This command is specifically designed to resume a job that has been paused or is currently running in the background, allowing the user to interact with it in the foreground. When you run a command in the background, it gets assigned a job ID, and using "fg" followed by that job ID allows you to bring that specific process back to the foreground.

For example, if you have started a process in the background and you want to make it the active task you’re working with, you simply type "fg" followed by the job number when needed. This is a fundamental command in shell job control, enabling users to manage multiple processes effectively.

The other options do have different purposes which do not involve bringing a background process to the foreground. "bg" is used to resume a suspended job in the background, “jobs” displays the list of current jobs and their statuses, while “ps” shows the current running processes. Understanding the distinct functions of these commands is essential for effective process management in Linux.