Comment on Yes

MonkderZweite@feddit.ch ⁨11⁩ ⁨months⁩ ago

• philm@programming.dev ⁨11⁩ ⁨months⁩ ago

  but effectively it’s bash, I think /bin/sh is a symlink to bash on every system I know of…

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  • MonkderZweite@feddit.ch ⁨11⁩ ⁨months⁩ ago

    Still don’t do this. If you use bash specific syntax with this head, that’s a bashism and causes issues with people using zsh for example. Or with Debian/*buntu, who use dash as init shell.

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    • wolo@lemmy.blahaj.zone ⁨11⁩ ⁨months⁩ ago

      #!/bin/bash doesn’t work on NixOS since bash is in the nix store somewhere, #!/usr/bin/env bash resolves the correct location regardless of where bash is

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      • JackbyDev@programming.dev ⁨11⁩ ⁨months⁩ ago

        Are there any distos with /use/bin/env in a different spot? I still believe that’s the best approach for getting bash.

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    • quantenzitrone@feddit.de ⁨11⁩ ⁨months⁩ ago

      /bin/bash won’t work on every system for example NixOS some other systems may have bash in /usr/bin or elsewhere

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      • MonkderZweite@feddit.ch ⁨11⁩ ⁨months⁩ ago

        NixOS didn’t do /usr merge?

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  • JackbyDev@programming.dev ⁨11⁩ ⁨months⁩ ago

    No no no no no, do not believe this you will shoot yourself in the foot.

    wiki.debian.org/Shell

    Beginning with DebianSqueeze, Debian uses Dash as the target of the /bin/sh symlink. Dash lacks many of the features one would expect in an interactive shell, making it faster and more memory efficient than Bash.

    From DebianSqueeze to DebianBullseye, it was possible to select bash as the target of the /bin/sh symlink (by running dpkg-reconfigure dash). As of DebianBookworm, this is no longer supported.

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  • SurpriseWaterfall@sopuli.xyz ⁨11⁩ ⁨months⁩ ago

    It is a symlink, but bash will automatically enable posix compliance mode if you use it. So any bash specific features will bomb out unless you explicitly reset it in the script.

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  • UNWILLING_PARTICIPANT@sh.itjust.works ⁨11⁩ ⁨months⁩ ago

    Wut that is not even the case for Ubuntu. You’re probably thinking of dash example:

    sh -c '[[ true ]] && echo ya' # sh: 1: [[: not found
    bash -c '[[ true ]] && echo ya' # ya
    

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  • callyral@pawb.social ⁨11⁩ ⁨months⁩ ago

    i thought most unix-like systems had it symlinked to a shell like dash. it’s what i have on my system.

    i use #!/bin/sh for posix scripts and #!/usr/bin/env bash for bash scripts. #!/bin/sh works for posix scripts since even if it’s symlinked to bash, bash still supports posix features.

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  • Aatube@kbin.social ⁨11⁩ ⁨months⁩ ago

    macOS
    Debian
    Ubuntu

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