Advanced Bash Scripting Guide 5 3 Volume 2

Summary This comprehensive and authoritative book about bash programming is a must-have book for any Linux/Unix professionals. It is both a tutorial and a reference on shell scripting with Bash.It assumes no previous knowledge of scripting or programming, but progresses rapidly toward an intermediate/advanced level of instruction . . . all the while sneaking in little nuggets of UNIX® wisdom and lore. It serves as a textbook, a manual for self-study, and as a reference and source of knowledge on shell scripting techniques. The exercises and heavily-commented examples invite active reader participation, under the premise that the only way to really learn scripting is to write scripts. This book is suitable for classroom use as a general introduction to programming concepts. Notes: this book has been splited into Volume 1 and Volume 2.Volume 1 contains all content except appdendixes. ( https://www.amazon.com/dp/170640039X ) Volume 2 contains all appdendixes. ( https://www.amazon.com/dp/1707048916) Table of Contents of Volume 2 A. Contributed Scripts B. Reference Cards C. A Sed and Awk Micro-Primer C.1. Sed C.2. Awk D. Parsing and Managing Pathnames E. Exit Codes With Special Meanings F. A Detailed Introduction to I/O and I/O Redirection G. Command-Line Options G.1. Standard Command-Line Options G.2. Bash Command-Line Options H. Important Files I. Important System Directories J. An Introduction to Programmable Completion K. Localization L. History Commands M. Sample .bashrc and .bash_profile Files N. Converting DOS Batch Files to Shell Scripts O. Exercises O.1. Analyzing Scripts O.2. Writing Scripts P. Revision History Q. Download and Mirror Sites R. To Do List S. Copyright T. ASCII Table

Summary This comprehensive and authoritative book about bash programming is a must-have book for any Linux/Unix professionals. It is both a tutorial and a reference on shell scripting with Bash.It assumes no previous knowledge of scripting or programming, but progresses rapidly toward an intermediate/advanced level of instruction . . . all the while sneaking in little nuggets of UNIX® wisdom and lore. It serves as a textbook, a manual for self-study, and as a reference and source of knowledge on shell scripting techniques. The exercises and heavily-commented examples invite active reader participation, under the premise that the only way to really learn scripting is to write scripts. This book is suitable for classroom use as a general introduction to programming concepts. Notes: this book has been splited into Volume 1 and Volume 2.Volume 1 contains all content except appdendixes. ( https://www.amazon.com/dp/170640039X ) Volume 2 contains all appdendixes. ( https://www.amazon.com/dp/1707048916) Table of Contents of Volume 1 Part 1. Introduction 1. Shell Programming! 2. Starting Off With a Sha-Bang Part 2. Basics 3. Special Characters 4. Introduction to Variables and Parameters 5. Quoting 6. Exit and Exit Status 7. Tests 8. Operations and Related Topics Part 3. Beyond the Basics 9. Another Look at Variables 10. Manipulating Variables 11. Loops and Branches 12. Command Substitution 13. Arithmetic Expansion 14. Recess Time Part 4. Commands 15. Internal Commands and Builtins 16. External Filters, Programs and Commands 17. System and Administrative Commands Part 5. Advanced Topics 18. Regular Expressions 19. Here Documents 20. I/O Redirection 21. Subshells 22. Restricted Shells 23. Process Substitution 24. Functions 25. Aliases 26. List Constructs 27. Arrays 28. Indirect References 29. /dev and /proc 30. Network Programming 31. Of Zeros and Nulls 32. Debugging 33. Options 34. Gotchas 35. Scripting With Style 36. Miscellany 37. Bash, versions 2, 3, and 4 38. Endnotes 38.1. Author's Note 38.2. About the Author 38.3. Where to Go For Help 38.4. Tools Used to Produce This Book 38.5. Credits 38.6. Disclaimer Bibliography

The key to mastering any Unix system, especially Linux and Mac OS X, is a thorough knowledge of shell scripting. Scripting is a way to harness and customize the power of any Unix system, and it's an essential skill for any Unix users, including system administrators and professional OS X developers. But beneath this simple promise lies a treacherous ocean of variations in Unix commands and standards. bash Cookbook teaches shell scripting the way Unix masters practice the craft. It presents a variety of recipes and tricks for all levels of shell programmers so that anyone can become a proficient user of the most common Unix shell -- the bash shell -- and cygwin or other popular Unix emulation packages. Packed full of useful scripts, along with examples that explain how to create better scripts, this new cookbook gives professionals and power users everything they need to automate routine tasks and enable them to truly manage their systems -- rather than have their systems manage them.

The Bash Guide for Beginners (Second Edition) discusses concepts useful in the daily life of the serious Bash user. While a basic knowledge of shell usage is required, it starts with a discussion of shell building blocks and common practices. Then it presents the grep, awk and sed tools that will later be used to create more interesting examples. The second half of the course is about shell constructs such as loops, conditional tests, functions and traps, and a number of ways to make interactive scripts. All chapters come with examples and exercises that will help you become familiar with the theory.

Master the complexities of Bash shell scripting and unlock the power of shell for your enterprise Key Features Identify high-level steps such as verifying user input Using the command line and conditional statements in creating/executing simple shell scripts Create and edit dynamic shell scripts to manage complex and repetitive tasks Leverage the command-line to bypass GUI and automate common tasks Book Description In this book, you’ll discover everything you need to know to master shell scripting and make informed choices about the elements you employ. Grab your favorite editor and start writing your best Bash scripts step by step. Get to grips with the fundamentals of creating and running a script in normal mode, and in debug mode. Learn about various conditional statements' code snippets, and realize the power of repetition and loops in your shell script. You will also learn to write complex shell scripts. This book will also deep dive into file system administration, directories, and system administration like networking, process management, user authentications, and package installation and regular expressions. Towards the end of the book, you will learn how to use Python as a BASH Scripting alternative. By the end of this book, you will know shell scripts at the snap of your fingers and will be able to automate and communicate with your system with keyboard expressions. What you will learn Make, execute, and debug your first Bash script Create interactive scripts that prompt for user input Foster menu structures for operators with little command-line experience Develop scripts that dynamically edit web configuration files to produce a new virtual host Write scripts that use AWK to search and reports on log files Draft effective scripts using functions as building blocks, reducing maintenance and build time Make informed choices by comparing different script languages such as Python with BASH Who this book is for If you are a Linux administrator or a system administrator and are interested in automating tasks in your daily lives, saving time and effort, this book is for you. Basic shell scripting and command-line experience will be required. Familiarity with the tasks you need to automate will be helpful.