Find solutions to all your problems related to Linux system programming using practical recipes for developing your own system programs
Key Features

Develop a deeper understanding of how Linux system programming works
Gain hands-on experience of working with different Linux projects with the help of practical examples
Learn how to develop your own programs for Linux

Book Description

Linux is the world's most popular open source operating system (OS). Linux System Programming Techniques will enable you to extend the Linux OS with your own system programs and communicate with other programs on the system.

The book begins by exploring the Linux filesystem, its basic commands, built-in manual pages, the GNU compiler collection (GCC), and Linux system calls. You'll then discover how to handle errors in your programs and will learn to catch errors and print relevant information about them. The book takes you through multiple recipes on how to read and write files on the system, using both streams and file descriptors. As you advance, you'll delve into forking, creating zombie processes, and daemons, along with recipes on how to handle daemons using systemd. After this, you'll find out how to create shared libraries and start exploring different types of interprocess communication (IPC). In the later chapters, recipes on how to write programs using POSIX threads and how to debug your programs using the GNU debugger (GDB) and Valgrind will also be covered.

By the end of this Linux book, you will be able to develop your own system programs for Linux, including daemons, tools, clients, and filters.
What you will learn

Discover how to write programs for the Linux system using a wide variety of system calls
Delve into the working of POSIX functions
Understand and use key concepts such as signals, pipes, IPC, and process management
Find out how to integrate programs with a Linux system
Explore advanced topics such as filesystem operations, creating shared libraries, and debugging your programs
Gain an overall understanding of how to debug your programs using Valgrind

Who this book is for
This book is for anyone who wants to develop system programs for Linux and gain a deeper understanding of the Linux system. The book is beneficial for anyone who is facing issues related to a particular part of Linux system programming and is looking for specific recipes or solutions.
Table of Contents

Getting the Necessary Tools and Writing Our First Linux Programs
Making Your Programs Easy to Script
Diving Deep into C in Linux
Handling Errors in Your Programs
Working with File I/O and Filesystem Operations
Spawning Processes and Using Job Control
Using systemd to Handle Your Daemons
Creating Shared Libraries
Terminal I/O and Changing Terminal Behavior
Using Different Kinds of IPC
Using Threads in Your Programs
Debugging Your Programs