Shell scripting skills never go out of style. It's the shell that unlocks the real potential of Unix. Shell scripting is essential for Unix users and system administrators-a way to quickly harness and customize the full power of any Unix system. With shell scripts, you can combine the fundamental Unix text and file processing commands to crunch data and automate repetitive tasks. But beneath this simple promise lies a treacherous ocean of variations in Unix commands and standards. Classic Shell Scripting is written to help you reliably navigate these tricky waters.Writing shell scripts requires more than just a knowledge of the shell language, it also requires familiarity with the individual Unix programs: why each one is there, how to use them by themselves, and in combination with the other programs. The authors are intimately familiar with the tips and tricks that can be used to create excellent scripts, as well as the traps that can make your best effort a bad shell script. With Classic Shell Scripting you'll avoid hours of wasted effort. You'll learn not only write useful shell scripts, but how to do it properly and portably.The ability to program and customize the shell quickly, reliably, and portably to get the best out of any individual system is an important skill for anyone operating and maintaining Unix or Linux systems. Classic Shell Scripting gives you everything you need to master these essential skills.

Teach Yourself Shell Programming in 14 Days is a true beginning level guide to the Bourne Shell. Everyone who works in UNIX uses one of its three shells. This tutorial shows uses how to exploit the Bourne Shell to optimize their system, increase productivity, and work more efficiently.

UNIX expert Randal K. Michael guides you through every detail of writing shell scripts to automate specific tasks. Each chapter begins with a typical, everyday UNIX challenge, then shows you how to take basic syntax and turn it into a shell scripting solution. Covering Bash, Bourne, and Korn shell scripting, this updated edition provides complete shell scripts plus detailed descriptions of each part. UNIX programmers and system administrators can tailor these to build tools that monitor for specific system events and situations, building solid UNIX shell scripting skills to solve real-world system administration problems.

O'Reilly's bestselling book on Linux's bash shell is at it again. Now that Linux is an established player both as a server and on the desktop Learning the bash Shell has been updated and refreshed to account for all the latest changes. Indeed, this third edition serves as the most valuable guide yet to the bash shell.As any good programmer knows, the first thing users of the Linux operating system come face to face with is the shell the UNIX term for a user interface to the system. In other words, it's what lets you communicate with the computer via the keyboard and display. Mastering the bash shell might sound fairly simple but it isn't. In truth, there are many complexities that need careful explanation, which is just what Learning the bash Shell provides.If you are new to shell programming, the book provides an excellent introduction, covering everything from the most basic to the most advanced features. And if you've been writing shell scripts for years, it offers a great way to find out what the new shell offers. Learning the bash Shell is also full of practical examples of shell commands and programs that will make everyday use of Linux that much easier. With this book, programmers will learn: How to install bash as your login shell The basics of interactive shell use, including UNIX file and directory structures, standard I/O, and background jobs Command line editing, history substitution, and key bindings How to customize your shell environment without programming The nuts and bolts of basic shell programming, flow control structures, command-line options and typed variables Process handling, from job control to processes, coroutines and subshells Debugging techniques, such as trace and verbose modes Techniques for implementing system-wide shell customization and features related to system security

Learn how to create and develop shell scripts in a step-by-step manner increasing your knowledge as you progress through the book. Learn how to work the shell commands so you can be more productive and save you time.

Getting Started. Using UNIX Tools. Bourne Shell Programming. Creating Applications with UNIX Tools.

SHELL SCRIPTING , UNIX , LINUX This book is for all those who are willing to learn UNIX like operating system and shell scripting. You can start reading this book without any knowledge of programming / scripting or any knowledge of any Linux/ UNIX operating system. All of the programs / scripts in this book are explained as a step by step program with clear instructions. Each chapter will contain a certain number of relevant topics with illustrations and exercises where necessary, this will all be finished off with an end of chapter quiz for an easy and enjoyable learning. In this book you will find the following topics: wildcards, functions, text processing, text searching, loops, troubleshooting and debugging. At the end of this book you will learn how to write more complex scripts using variables, functions and loops. If you are Linux new user, so this book is good for you, keep in mind this is not about Linux system administration. CLICK ADD TO CART TO GET THIS AMAZING BOOK!

UNIX power users and programmers will be guided through the intricacies of writing efficient and effective UNIX shells. If you are planning to customize your UNIX environment with the latest techniques in shell scripting, this hands-on guide is essential for you. Included is complete coverage of the emerging IEEE standard for UNIX shell programming, up-to-the-minute data on facilitating windowing, systems documentation, desktop publishing, and hypermedia within the UNIX environment, many helpful real-world examples of UNIX shell scripts, and all aspects of shell commands, syntax, and control structures.