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I can't like the fish
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this post was submitted on 23 Jul 2026
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When is this a problem? What scripts don't use a shebang and/or why does using
shcall fish instead of bash or dash?I have a mild dislike of fish because a few substitutions are different enough that my muscle memory isn't there. (But I also haven't put in serious effort to learn them.)
I think they don't use shebang
Have you run into a specific problem or is this just a hypothetical you're worried about. I see this a lot but haven't ever actually run into it being a concern. If you run a script with
#!/bin/shfrom a Fish shell, it won't use Fish, it will use whatever you haveshpointing to. (Which shouldn't be Fish, it's usually bash or dash.)I ran into issues on fish,i don't remember what they are but I think it's no shebang
Ah, I see. If you don't remember, don't sweat. I'm mostly curious just because posix issues is one of the few complaints I hear but I never see anything specific so I'm extremely curious lol. Please don't mistake this as one of those fanboyism moments where people try to say something they like is actually perfect and doesn't have flaws.
My understanding of shebangs is that it isn't your shell doing anything fancy with it, it's your OS (or something, I don't remember exactly, but it's lower level than the shell). So maybe something else borked. But I'm no fish expert, I have some error in some fish thing that prints an error every time I open a new shell that I'm too lazy to troubleshoot lol.