Implementing a Job Control Shell

This section describes what a shell must do to implement job control, by presenting an extensive sample program to illustrate the concepts involved.

• section Data Structures for the Shell, introduces the example and presents its primary data structures.
• section Initializing the Shell, discusses actions which the shell must perform to prepare for job control.
• section Launching Jobs, includes information about how to create jobs to execute commands.
• section Foreground and Background, discusses what the shell should do differently when launching a job in the foreground as opposed to a background job.
• section Stopped and Terminated Jobs, discusses reporting of job status back to the shell.
• section Continuing Stopped Jobs, tells you how to continue jobs that have been stopped.
• section The Missing Pieces, discusses other parts of the shell.

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