

The core of Linux system programming is the same as on any other Unix system. Instead, Linux follows its own course, diverging where desired and converging only where practical. Although Linux shares the goals and philosophy of Unix, Linux is not Unix. Linux is a modern Unix-like system, written from scratch by Linus Torvalds and a loose-knit community of programmers around the globe. In particular, this book is about system programming on Linux. Whether it is the programmer’s raison d'être, or merely a foundation for higher-level concepts, system programming is at the heart of all software that we write. There is no programmer, however, who does not benefit from an understanding of system programming. Some programmers spend all day every day writing system software others spend only part of their time on this task.


Other software (such as high-level GUI applications) lives at a higher level, delving into the low level only on occasion. These components are entirely system software, primarily if not exclusively interfacing with the kernel and the C library. But so are the network server, the web server, and the database. Your shell and your text editor, your compiler and your debugger, your core utilities and system daemons are all system software. System software lives at a low level, interfacing directly with the kernel and core system libraries. This book is about system programming, which is the practice of writing system software. Yes! It is absolutely free and online.Chapter 1. Introduction and Essential Concepts If you are willing to learn the Unix/Linux basic commands and Shell script but you do not have a setup for the same, then do not worry - The CodingGround is available on a highend dedicated server giving you real programming experience with the comfort of singleclick execution. A basic understanding on various computer concepts will also help you in understanding the various exercises given in this tutorial. We assume you have adequate exposure to Operating Systems and their functionalities. This tutorial has been prepared for the beginners to help them understand the basics to advanced concepts covering Unix commands, Unix shell scripting and various utilities. This tutorial gives a very good understanding on Unix. The development of Unix started around 1969 at AT&T Bell Labs by Ken Thompson and Dennis Ritchie. Unix is a computer Operating System which is capable of handling activities from multiple users at the same time. PDF Version Quick Guide Resources Job Search Discussion
