This section describes what a shell must do to implement job control, by presenting an extensive sample program to illustrate the concepts involved.
|• Data Structures:||Introduction to the sample shell.|
|• Initializing the Shell:||What the shell must do to take responsibility for job control.|
|• Launching Jobs:||Creating jobs to execute commands.|
|• Foreground and Background:||Putting a job in foreground of background.|
|• Stopped and Terminated Jobs:||Reporting job status.|
|• Continuing Stopped Jobs:||How to continue a stopped job in the foreground or background.|
|• Missing Pieces:||Other parts of the shell.|