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I love being super fast in the shell so I decided to do a new article series called Bash One-Liners Explained. It's going to be similar to my other article series - Awk One-Liners Explained, Sed One-Liners Explained, and Perl One-Liners Explained. After I'm done with this bash series, I'll release an e-book by the same title, just as I did with awk, sed, and perl series. The e-book will be availab
A Unix Shell in Ruby - Part 2: Builtins Published on February 21, 2012 by Jesse Storimer Welcome to the second article in this series. Last time we implemented a verrrry basic shell that could just run most basic commands. This time around we're going to look at how it's broken and how we can fix it. First up, we'll need a few builtins. A Note on Launching Last time I explained the semantics of ex
A Unix Shell in Ruby Published on February 16, 2012 by Jesse Storimer This is the first article in a series where I'll implement a Unix shell in pure Ruby code. Why a shell? A shell is the quintessential example of a Unix program. It hits all of the interesting points that a Unix system is capable of. It has to read input from STDIN, spawn processes requested from users, send signals to processes
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