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Chapter 15. Signals

The execution of a program normally proceeds synchronously, with each step following the previous one. Sometimes actions must be executed immediately by interrupting this flow of execution. This may be a request to terminate the program or to process some new action. UNIX provides for this capability with signals.

In this chapter you will learn how to

  • Create and manage signal sets

  • Catch signals

  • Suspend signals

  • Raise signals


  

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