I've set up my .bash_profile to colour code the hostname in the command prompt differently depending on which machine I'm on. I have a separate file for specifying the host colours, which is sourced ...

You've probably written dozens of Bash scripts by now. You may have used grep in a conditional statement or sed to transform small blocks of text inline. What if I told you that's incredibly ...

Editor's Note: This article has been updated by its author. Thank you, Pat. Have you ever wanted to change the names of many files at once? Or, have you ever needed to use a default value for a ...

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