I'm trying a slightly different format today. The longer posts earlier in the week are where I want to work through the bigger arguments properly, with the context and caveats they need. Fridays are going to be shorter and more technical, mostly small things I do in my own work that are useful enough to be worth sharing with you, but not so large that they need a full essay.

This one is about the first line I put at the top of almost every shell script I write:

`bash set -euo pipefail `

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