Hello, I've recently come across a bug in dash.
https://lore.kernel.org/dash/CAMQsgbSZnEac=ETYnR6a_ysnAysaHThwY03pnoDxC=p5fqt...@mail.gmail.com/T This issue is known for 7 years: https://groups.google.com/g/linux.debian.bugs.dist/c/c6kRE-fhyuM Fix is 18 months old, but unfortunately not released yet. Hence, we have this issue even in sid (as I understand). As this bug doesn't exist in bash I started thinking: why does Debian use dash at all (not like RH for example, which uses `bash` for `sh)? It turned out that 27 years ago there were 2 arguments: 1) Speed: bash is much larger and slower, and boot time was affected. 2) Posix compatibility. The former argument is probably not so important now since Debian uses `systemd` (no more sh scripts) and, honestly, I can't imagine how bash could be a bottleneck for anything in 2024 (if you have such scenarios, please share). The latter is also a little bit strange as aforenamed bug breaks POSIX compatibility (yes, stable Debian has a bug that breaks POSIX). Having two shells (one for scripting and other one for interactive) might lead to some other inconsistencies (one code-base is usually more consistent than two). With all of that I am pretty sure there should be some reason why dash is still `sh` in Debian, and I must be missing something. So, what is the reason? Thank you, Ilya.
