why's (poignant) guide to Ruby
by why the lucky stiff
This is just a small illustrated online-only Ruby book. It won’t crush you. It’s light as a feather (because I haven’t finished it yet—hehe). And there’s a reason this book will stay light: because Ruby is simple to learn.
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by David Thomas, Andrew Hunt - Addison-Wesley
Introduction to Ruby, an object-oriented programming language, which allows for programming without extra syntax or code. Shows how to easily mine the Ruby language, teaching the basics, plus how to write large programs, and more.
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A book designed around teaching Ruby on Rails in a precept upon precept fashion. Both theory and practice driving your knowledge. If you are a beginner, the purpose of this book is to simply get you there in small, manageable steps.
RubyGems is the premier ruby packaging system. It provides: A standard format for distributing Ruby programs and libraries; An tool for managing the installation of gem packages; A gem server utility for serving gems from any machine...
This book is a great collection of ideas, tricks, and skills that could be useful for Hackers. It's a unique extraction reference, summarizes a lot of research and experience. Rubyfu is a book to use not only to read, it's where ruby goes evil.