12.8 Job Control in a Nutshell

Unless otherwise noted, these commands apply only to the C shell, Korn shell, and bash :

• command  & ( 1.26 , 12.1 ) : Run command in the background. You can continue to execute jobs in the foreground. All shells.

• CTRL-c ( 38.9 ) : Kill the current foreground job by sending the INTR signal ( 38.8 ) . All shells.

• CTRL-z ( 12.1 , 12.4 ) : Suspend the current foreground job by sending the TSTP signal ( 38.8 ) .

• Suspend a shell with the suspend command ( 22.22 ) .

• Suspend a background job with the stop command or an alias that does the same thing ( 12.5 ) .

• bg % num ( 12.1 ) : Let a stopped job (by job number num ) continue in the background.

• fg % num ( 12.1 ) : Put a background job or a stopped job (by job number num ) into the foreground.

• kill % num ( 12.1 ) : Kill an arbitrary background job (by job number num ).

• kill  pid ( 38.10 ) : Kill an arbitrary job (by process ID number num ). All shells.

• jobs ( 12.1 ) : List background and stopped jobs and their job numbers.

• set notify ( 12.6 ) : Immediate job-state change notices.

• stty tostop ( 12.7 ) : Automatically stop background processes if they try writing to the screen.