GNU/Linux Command – FG

fg — Place a job in the ForeGround.

Summary:

Normally user can run many jobs in background, by adding & at end of the command (ex: sleep 10 &). fg is a built-in shell command. It is used to move a job from background to the foreground, as if it is NOT started with `&’. If JOB is not present, then current job is used.

Examples:
$ sleep 100 & -- Start a dummy job in background. $ fg -- Move the last job to foreground. $ sleep 150 & -- Dummy job 1 $ sleep 140 & -- Dummy job 2 $ sleep 130 & -- Dummy job 3 $ jobs -- List all active jobs. $ fg 2 -- Move the 2nd active job to foreground.
Read: help fg, jobs

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