undefined | Better HN

0 pointstombert5mo ago0 comments

I'm not sure the reason then, but they're definitely right; it works fine with zsh, doesn't work with bash. I wrote a test script to try it myself.

I don't have fish installed and can't be bothered to go that far, but I suspect they're right about that as well.

0 comments

opello5mo ago

It is strange, cursory digging for an explanation was a little more complex than I bargained for...

https://github.com/torvalds/linux/blob/v6.17/fs/binfmt_scrip...

I think it makes it to calling open_exec but there's a test for BINPRM_FLAGS_PATH_INACCESSIBLE, which doesn't seem relevant since 'bash' isn't like '/dev/fd/<fd>/..', but does provoke an ENOENT.

https://github.com/torvalds/linux/blob/v6.17/fs/exec.c#L1445

Maybe someone else can explain it, I'd enjoy the details, and ran out of steam.

anotherhue5mo ago

env bash is all well and good for normies, but if you're already on NixOS did you know you can have nix-shell be your interpreter and back flip into any reproducible interpreted environment you like?

https://nixos.wiki/wiki/Nix-shell_shebang

SAI_Peregrinus5mo ago

Or any other system with Nix installed. I use this at work to provide scripts with all their dependencies specified that work across any Linux distro & MacOS. First execution is slow since it has to fetch everything, but after that it's fast and just works.

j / k navigate · click thread line to collapse