Moving a background job to the foreground | LinuC Level 1 101 Exam original practice question

1.01.4Basic

The background process appears as job 2 in jobs.

Bring it to the terminal foreground for interaction.

Which command is appropriate?

Hint 1: Focus on the requirement

Select the builtin that gives the selected job terminal control.

Hint 2: Key terms

Review the short definitions before comparing the process and job-control choices.

fg: A Bash builtin that moves a shell job into the foreground.
Job specification: A shell reference such as %2 that selects a job number.
Foreground process group: The process group currently allowed to read from the terminal.

Detailed explanation

Incorrectbg %2

Incorrect. bg resumes a stopped job in the background.

Incorrectjobs %2

Incorrect. jobs lists state but does not change foreground ownership.

Incorrectwait %2

Incorrect. wait waits for completion and does not attach the terminal.

Correctfg %2

Correct. fg %2 moves job 2 to the foreground.

An example you can run in a temporary verification environment.

help fg

Bash builtin fgのhelp

Environment: Bash 5.x builtin help
Use a disposable process or test shell when checking lifecycle commands.
Exact output and option names can vary slightly by distribution and tool version.

Foundation review

fg differs from bg because it attaches the job to terminal input and makes the shell wait.

Check the job number in jobs output before passing a job specification to fg.

Question IDKL-101-356

EnvironmentBash 5.x builtin help

Last technical review2026-08-13

More practice in this area