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Learn Ruby the Hard Way: A Simple and Idiomatic Introduction to the Imaginative World of Computational Thinking with Code, Third Edition by Zed A. Shaw

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Appendix. Command Line Crash Course

This appendix is a quick, super-fast course in using the command line. It is intended to be done rapidly in about a day or two, and is not meant to teach you advanced shell usage.

Introduction: Shut Up and Shell

This appendix is a crash course in using the command line to make your computer perform tasks. As a crash course, it’s not as detailed or extensive as my other books. It is simply designed to get you barely capable enough to start using your computer like a real programmer does. When you’re done with this appendix, you will be able to give most of the basic commands that every shell user touches every day. You’ll understand the basics of directories and a few other concepts.

The only piece of advice ...

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