Unlock the Secrets of Linux System Programming and Take Your Coding Skills to the Next Level Do you use Linux, but not really understand it?Have you ever wondered how `ls -l' knows everything does?Could you explain to a coworker why `ls' and `find' can be external commands but `cd' and `umask' must be built into the shell? The answers to these questions, and more, are in Linux Application Programming by Example, Second Edition. Purposely avoiding Too Much Information (TMI) this book tells you exactly what you need to know--no more and no less--about the fundamental Linux system programming APIs. Following the latest POSIX standard, author Arnold Robbins explains how the basic file, process, IPC and networking APIs work. Wherever possible, he demonstrates the use of the APIs with code drawn from real programs (V7 Unix, BSD Unix, and GNU). When not possible, the author provides small, clearly documented and annotated, standalone example programs of his own. The author focuses on both high-level principles and "under the hood" techniques. Along the way, he carefully addresses real-world issues like performance, portability, and robustness. Each chapter closes with exercises, ranging from coding problems to thought experiments, to help you cement your understanding of the material covered. And each chapter has been thoroughly revised and updated for this edition, and two completely new chapters have been added. All of the code presented in the book is available for download from GitHub, so that you can compile, run, and modify the programs yourself. Coverage includes: Memory managementFile I/OFile metadataProcesses, Users and groupsSorting and searchingArgument parsingExtended interfacesSignalsInternationalizationBasic NetworkingDebuggingAnd more! . . . Just learning to program? Switching from Windows or macOS? Already developing with Linux but interested in exploring the system call interface further? No matter which, quickly and directly, this book will help you master the fundamentals needed to build serious Linux software. If you're ready to leave the cocoon of high-level language programming and get closer to the metal, this book is for you!
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