No, my point is that you cannot just take a script written for bash and run it on Zsh or Ksh and expect it to just work. (Well, sometimes you can, but that's be

No, my point is that you cannot just take a script written for bash and run it on Zsh or Ksh and expect it to just work. (Well, sometimes you can, but that's beside the point.) Yes you can write your init scripts in whatever language you want, even Lisp or Python, but you have to do that for every daemon you switch over. Imagine a lot of these Linux distros which often implement their own init scripts for each program they support having to switch shells. That's hundreds of scripts to rewrite, or at least proofread and test.