Learning Linux Shell Scripting

Break through the practice of writing tedious code with shell scriptsAbout This BookLearn to impeccably build shell scripts and develop advanced applicationsCreate smart solutions by writing and debugging scriptsA step-by-step tutorial to automate routine tasks by developing scriptsWho This Book Is ForLearning Linux Shell Scripting is ideal for those who are proficient at working with Linux and want to learn about shell scripting to improve their efficiency and practical skills.What You Will LearnFamiliarize yourself with the various text filtering tools available in LinuxUnderstand expressions and variables and how to use them practicallyAutomate decision-making and save a lot of time and effort of revisiting codeGet to grips with advanced functionality such as using traps, dialogs to develop screens & Database administration such as MySQL or OracleStart up a system and customize a Linux systemTaking backup of local or remote data or important files.Use existing other language scripts such as Python, Perl & Ruby in Shell ScriptsIn DetailLinux is the most powerful and universally adopted OS. Shell is a program that gives the user direct interaction with the operating system. Scripts are collections of commands that are stored in a file. The shell reads this file and acts on commands as if they were typed on the keyboard.Learning Linux Shell Scripting covers Bash, GNU Bourne Again Shell, preparing you to work in the exciting world of Linux shell scripting. CentOS is a popular rpm-based stable and secured Linux distribution. Therefore, we have used CentOS distribution instead of Ubuntu distribution. Linux Shell Scripting is independent of Linux distributions, but we have covered both types of distros. We start with an introduction to the Shell environment and basic commands used. Next, we explore process management in Linux OS, real-world essentials such as debugging and perform Shell arithmetic fluently. You'll then take a step ahead and learn new and advanced topics in Shell scripting, such as decision making, starting up a system, and customizing a Linux environment. You will also learn about grep, stream editor, and AWK, which are very powerful text filters and editors. Finally, you'll get to grips with taking backup, using other language scripts in Shell Scripts as well as automating database administration tasks for MySQL and Oracle.By the end of this book, you will be able to confidently use your own shell scripts in the real world.Style and approachThis practical book will go from the very basics of shell scripting to complex, customized automation. The idea behind this book is to be as practical as possible and give you the look and feel of what real-world scripting is like.