Команда fg
Continues a stopped job by running it in the foreground, some shells are not able to run this command.
fg [%job]
| %job | Specifies the job that you want to run in the foreground. |
fg - Typing fg alone will resume the first job were it was left off.
fg 1 - specifying the job (in this case 1) will resume that particular job. The job id can be determined by running bg.