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Linux System Programming Techniques

You're reading from   Linux System Programming Techniques Become a proficient Linux system programmer using expert recipes and techniques

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Product type Paperback
Published in May 2021
Publisher Packt
ISBN-13 9781789951288
Length 432 pages
Edition 1st Edition
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Author (1):
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Jack-Benny Persson Jack-Benny Persson
Author Profile Icon Jack-Benny Persson
Jack-Benny Persson
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Table of Contents (14) Chapters Close

Preface 1. Chapter 1: Getting the Necessary Tools and Writing Our First Linux Programs 2. Chapter 2: Making Your Programs Easy to Script FREE CHAPTER 3. Chapter 3: Diving Deep into C in Linux 4. Chapter 4: Handling Errors in Your Programs 5. Chapter 5: Working with File I/O and Filesystem Operations 6. Chapter 6: Spawning Processes and Using Job Control 7. Chapter 7: Using systemd to Handle Your Daemons 8. Chapter 8: Creating Shared Libraries 9. Chapter 9: Terminal I/O and Changing Terminal Behavior 10. Chapter 10: Using Different Kinds of IPC 11. Chapter 11: Using Threads in Your Programs 12. Chapter 12: Debugging Your Programs 13. Other Books You May Enjoy

Chapter 6: Spawning Processes and Using Job Control

In this chapter, we'll learn about how processes are created on the system, which process is the very first one, and how all processes are related to each other. We'll then learn the many terms involved in processes and process management in Linux. After that, we'll learn how to fork new processes and what zombies and orphans are. At the end of this chapter, we'll learn what a daemon is and how to create one, before learning about what signals are and how to implement them.

Knowing how processes are created on the system is key to implementing good daemons, dealing with security, and creating efficient programs. It will also give you a better understanding of the overall system. In this chapter, we will cover the following recipes:

  • Exploring how processes are created
  • Using job control in Bash
  • Controlling and terminating processes using signals
  • Replacing the program in a process with execl...
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