bash Cookbook
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. more »
bash Pocket Reference
You need to know how to work with the bash shell if you want to get to the heart of Unix systems, including Linux and Mac OS X. Now covering the most recent version of bash, this concise little book puts all of the essential information about bash at your fingertips. You'll quickly find answers to annoying questions that always come up when you're writing shell scripts -- What characters do you need to quote? How do you get variable substitution to do exactly what you want? How do you use arrays? -- and much more. more »
bash Quick Reference
In this quick reference, you'll find everything you need to know about the bash shell. Whether you print it out or read it on the screen, this PDF gives you the answers to the annoying questions that always come up when you're writing shell scripts: What characters do you need to quote? How do you get variable substitution to do exactly what you want? How do you use arrays? It's also helpful for interactive use.
If you're a Unix user or programmer, or if you're using bash on Windows, you'll find this quick reference indispensable. more »
Shell Scripting
The shell is the primary way of communicating with Unix and Linux systems, providing a direct way to program by automating simple to intermediate tasks. In this invaluable resource, Unix, Linux, and shell scripting expert Steve Parker shares a collection of shell scripting recipes that can be used as provided or easily modified for a variety of environments and situations. The book begins with coverage of theory and principles, replete with insightful examples of each element discussed. You then move on to an in-depth discussion of shell programming, covering all Unix flavors but with a focus on Linux and the Bash shell. All the while, you explore credible, real-world recipes and the tools necessary to get started immediately. more »
Linux Command Line and Shell Scripting Bible, 2nd Edition
The Linux command line allows you to type specific Linux commands directly to the system so that you can easily manipulate files and query system resources, thereby permitting you to automate commonly used functions and even schedule those programs to run automatically. This new edition is packed with new and revised content, reflecting the many changes to new Linux versions, including coverage of alternative shells to the default bash shell. In addition, this edition features a host of real-world examples, so you can see how the scripts work in application. more »
Learn Raspberry Pi with Linux
Learn Raspberry Pi with Linux will tell you everything you need to know about the Raspberry Pi's GUI and command line so you can get started doing amazing things. You'll learn how to set up your new Raspberry Pi with a monitor, keyboard and mouse, and you'll discover that what may look unfamiliar in Linux is really very familiar. You'll find out how to connect to the internet, change your desktop settings, and you'll get a tour of installed applications.

Next, you'll take your first steps toward being a Raspberry Pi expert by learning how to get around at the Linux command line. You'll learn about different shells, including the bash shell, and commands that will make you a true power user. more »
Pro Windows PowerShell
Windows power users have always envied their friends running UNIX machines for the ease of automation that they enjoy. The traditional Windows command-line shell, cmd.exe, has never been up to par with shells like bash or tcsh, especially when it comes to text processing and process automation.

Windows PowerShell changes all that. This next-generation shell is also a full-blown scripting environment with a real programming language that allows users to access every part of their operating system. Files, registry entries, and COM and .NET objects are all supported by PowerShell, which makes manipulating them a breeze. more »
Penetration Testing with the Bash shell
This book teaches you to take your problem solving capabilities to the next level with the Bash shell, to assess network and application level security by leveraging the power of the command-line tools available with Kali Linux.

The book begins by introducing some of the fundamental bash scripting and information processing tools. Building on this, the next few chapters focus on detailing ways to customize your Bash shell using functionalities such as tab completion and rich text formatting. After the fundamental customization techniques and general purpose tools have been discussed, the book breaks into topics such as the command-line-based security tools in the Kali Linux operating system. The general approach in discussing these tools is to involve general purpose tools discussed in previous chapters to integrate security assessment tools. This is a one stop solution to learn Bash and solve information security problems. more »
Pro Bash Programming, 2nd Edition
Pro Bash Programming teaches you how to effectively utilize the Bash shell in your programming. The Bash shell is a complete programming language, not merely a glue to combine external Linux commands. By taking full advantage of Shell internals, Shell programs can perform as snappily as utilities written in C or other compiled languages. And you will see how, without assuming Unix lore, you can write professional Bash 4.3 programs through standard programming techniques.

This second edition has updated for Bash 4.3, and many scripts have been rewritten to make them more idiomatically Bash, taking better advantage of features specific to Bash. It is easy to read, understand, and will teach you how to get to grips with Bash programming without drowning you in pages and pages of syntax. more »
Elasticsearch in Action
Modern search seems like magic—you type a few words and the search engine appears to know what you want. With the Elasticsearch real-time search and analytics engine, you can give your users this magical experience without having to do complex low-level programming or understand advanced data science algorithms. You just install it, tweak it, and get on with your work.

Elasticsearch in Action teaches you how to write applications that deliver professional quality search. As you read, you'll learn to add basic search features to any application, enhance search results with predictive analysis and relevancy ranking, and use saved data from prior searches to give users a custom experience. This practical book focuses on Elasticsearch's REST API via HTTP. Code snippets are written mostly in bash using cURL, so they're easily translatable to other languages. more »