
Job Control | 649
Bash and Korn
This is the Title of the Book, eMatter Edition
Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.
sort Sort final list
) )
}
complete -F _man man Associate function with command
Job Control
Job control lets you place foreground jobs in the background, bring background
jobs to the foreground, or suspend (temporarily stop) running jobs. All modern
Unix systems, including Linux and BSD systems, support job control; thus the
job-control features are automatically enabled. Many job-control commands take
a jobID as an argument. This argument can be specified as follows:
%n Job number n.
%s Job whose command line starts with string s.
%?s
Job whose command line contains string s.
%%
Current job.
%+
Current job (same as above).
%-
Previous job.
Both shells provide the following job-control commands. For more information
on these commands, see the “Built-in Commands (Bash and Korn Shells),” later in
this chapter.
bg Put a job in the background.
fg Put a job in the foreground.
jobs
List active jobs.
kill
Terminate a job.
stty tostop
Stop background jobs if they try to send output to the terminal. (Note that
stty is not a built-in command.)
suspend
Suspend a job-control shell (such as one created by su).
wait
Wait for background jobs to finish.
Ctrl-Z
Suspend a foreground job. Then use bg or fg. (Your terminal may use some-
thing other than Ctrl-Z as the suspend character.)