As Ruby pro David Copeland explains, writing a command-line application that is self-documenting, robust, adaptable and forever useful is easier than you might think. Ruby is particularly suited to this task, since it combines high-level abstractions with "close to the metal" system interaction wrapped up in a concise, readable syntax. Moreover, Ruby has the support of a rich ecosystem of open-source tools and libraries.
Ten insightful chapters each explain and demonstrate a command-line best practice. You'll see how to use these tools to elevate the lowliest automation script to a maintainable, polished application.
You'll learn how to use free, open source parsers to create user-friendly command-line interfaces as well as command suites. You'll see how to use defaults to keep options simple for everyday users, while giving advanced users options for more complex tasks.
There's no reason a command-line application should lack documentation, whether it's part of a help command or a man page; you'll find out when and how to use both. Your journey from command-line novice to pro ends with a look at valuable approaches to testing your apps, and includes some fun techniques for outside-the-box, colorful interfaces that will delight your users.
With Ruby, the command line is not dead. Long live the command line.
What You Need:
All you'll need is Ruby, and the ability to install a few gems along the way. Examples written for Ruby 1.9.2, but 1.8.7 should work just as well.
English Grammar Workbook For Dummies
Get some good grammar practice — and start speaking and writing well!
Good grammar is important, whether you want to advance your career, boost your GPA, or increase your SAT or ACT score. Practice is the key to improving your grammar skills, and that's what this workbook is all about. Open it and...
Sams Teach Yourself SQL in 24 Hours (5th Edition)
In just 24 sessions of one hour or less, you’ll learn how to use SQL to build effective databases, efficiently retrieve your data, and manage everything from performance to security! Using this book’s straightforward, step-by-step approach, you’ll learn hands-on through practical examples. Each lesson...
By following real-world...
HTML5 Games Development by Example: Beginner's Guide
HTML5 promises to be the hot new platform for online games. HTML5 games work on
computers, smartphones, and tablets, including iPhones and iPads. Be one of the first
developers to build HTML5 games today and be ready for tomorrow!
This book will show you how to use the latest HTML5 and CSS3 web standards to build card