Commands related to Process control

Here "PID" is refer to the process ID, that you can get from command "ps -aux" fg PIDBring a background or stopped process to the foreground.bg PIDSend the process to the background. Opposite to fg. The same can be accomplished with z. If you have stopped jobs, you have to type exit twice in row to log out.any_command&Run any command in the background (the symbol "&" means "run the proceeding