Linux and Unix fg command
fg [ %job_id ]
|%job_id||Specifies the job that you want to run in the foreground.|
Typing fg will resume the most recently suspended or backgrounded job.
Brings the job with the id 1 into the foreground, resuming it if it was suspended.
bg — Resume a suspended program without bringing it to the foreground.
csh — The C shell command interpreter.
kill — Send a signal to a process, affecting its behavior or killing it.
ksh — The Korn shell command interpreter.
ps — Report the status of a process or processes.
sh — The Bourne shell command interpreter.
stop — Stop a running job.