The variable $0 is a special one in this sequence. It's the name of the script or program invoked. This can be quite helpful, because it means you can add multiple commands to your Linux shell with a ...

Ok, I can't script my way out of a papper bag, so I need help with this.I declare some variables at the prompt:export catname=Fluffyexport dogname=SpotI make a no-executable file called text.dat ...

But since all these system and environment variables are available to GitHub Action workflows and scripts, I don’t feel guilty about combining them in a single discussion. GitHub Actions environment ...

Bug in Bash shell creates big security hole on anything ... is related to how Bash processes environmental variables passed by the operating system or by a program calling a Bash-based script.

This month, I want to look at what are perhaps some of the more arcane variable references you can do—calls that are definitely helpful if you're deep in the zone with your scripting. I imagine they ...