Tips on Unix utilities and related topics from @JohnDCook.

Joined August 2011
References to Unix and Linux over time, according to Google's ngram viewer
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Diagram of the bash brace expression {w,t,}h{e{n{,ce{,forth}},re{,in,fore,with{,al}}},ither,at}
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Replying to @AlgebraFact
If you stick two squares on the longer side of a silver rectangle, you get another silver rectangle.
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Set intersection and difference at the command line johndcook.com/blog/2026/03/2…
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Doing a database join with CSV files johndcook.com/blog/2019/12/3…
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Have you ever wished your bash script could print out a snake, a flying saucer, or a nose? Of course you have. Who hasn't? Well, now you can. These symbols have been included in Unicode 17.0.
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Thank you for following @UnixToolTip
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DITAA is a programming language for creating diagrams. The source code is an ASCII art version of the output. johndcook.com/blog/2016/06/1…
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