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This section describes what a shell must do to implement job control, by presenting an extensive sample program to illustrate the concepts involved.
27.6.1 Data Structures for the Shell Introduction to the sample shell. 27.6.2 Initializing the Shell What the shell must do to take responsibility for job control. 27.6.3 Launching Jobs Creating jobs to execute commands. 27.6.4 Foreground and Background Putting a job in foreground of background. 27.6.5 Stopped and Terminated Jobs Reporting job status. 27.6.6 Continuing Stopped Jobs How to continue a stopped job in the foreground or background. 27.6.7 The Missing Pieces Other parts of the shell.
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