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fg: Bring a specific job to foreground.
$ fg %${job_id}
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The command "fg %${job_id}" is used to bring a background job to the foreground.

Here's an explanation of each component of the command:

  • "fg" stands for "foreground" and is a command used in Unix-like operating systems to move a background job to the foreground.
  • "%" is a prefix used to indicate that we are referring to a job by its job ID.
  • "${job_id}" is a variable that represents the specific job ID that we want to bring to the foreground.

By executing this command, the job specified by the job ID stored in the "job_id" variable will be moved from the background to the foreground, allowing it to interact with the user directly on the terminal.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.
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