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learnbyexample.github.io
Example based guide for text processing with Ruby from the command line
IntroductionI've been using Linux since 2007, but it took me ten more years to really explore coreutils when I wrote tutorials for the Command Line Text Processing repository. Any beginner learning Linux command line tools would come across the cat command within the first week. Sooner or later, they'll come to know popular text processing tools like grep, head, tail, tr, sort, etc. If you were li
One-liner introductionThis chapter will give an overview of Ruby syntax for command line usage. You'll see examples to understand what kind of problems are typically suited for one-liners. Why use Ruby for one-liners?I'll assume that you are already familiar with use cases where the command line is more productive compared to GUI. See also this series of articles titled Unix as IDE. A shell utilit
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