[LUG]Re: writing shell scripts

["Dom (shymega) Rodriguez" <shymega@xxxxxxxxxxxxxx>]

On 25.10.2025 00:45, Dan Dart wrote:
> Hello folks
>
> Whilst I agree with the genAI sentiment (don't train it on copyrighted /
> permissionless data), I'd just like to point out that when you're writing
> *portable* shell scripts for other people, don't do this:
>
> #!/bin/bash
> #!/usr/bin/python
>
> as they're not guaranteed to live there. That's what /usr/bin/env is for -
> to provide the path to wherever it really does live, and it is much more
> likely to exist where you might expect. So:
>
> #!/usr/bin/env bash
> #!/usr/bin/env python


This is also good for NixOS, which I believe you use, right Dan? The
amount of times I have to patch shebangs at work on in Nixpkgs to work
with `/usr/bin/env` is relentless.

Thanks for pointing this out!


Best wishes,
--
Dom Rodriguez
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