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Not only is parameter expansion delightfully esoteric, it can replace sed for many applications. Or, as you’ve done, inverse basename. Since it’s a shell built

Not only is parameter expansion delightfully esoteric, it can replace sed for many applications. Or, as you’ve done, inverse basename. Since it’s a shell built-in, it avoids the overhead of exec. Ever wonder why asdf is slow? Go peek at the source code. This is why. I have a draft PR that fixes it, but there are still some failing tests I need to fix.

Twey 3y ago
Hmm, I only see a little bit of bash in asdf, but it's mostly wrappers that I don't expect to have much impact on performance? E.G. https://gitlab.common-lisp.net/asdf/asdf/-/blob/master/make-asdf.sh https://gitlab.common-lisp.net/asdf/asdf/-/blob/master/make-... I always assumed asdf is mostly pure CL…
- twic 3y ago
  Presumably https://github.com/asdf-vm/asdf https://github.com/asdf-vm/asdf
  - Twey 3y ago
    Oh no, that is a very unfortunately named project! Neither ASDF, not a virtual machine… but I suppose it is kind of Another System Definition Facility
    - NikkiA 3y ago
      Gen Z has gleefully name collided all the things.
forgotpwd16 3y ago
Replacing external program calls such as usual sed usage with shell (including bash specific) built-ins was also core in neofetch's design when was made as alternative to screenfetch. Will say that checking dylanaraps, someone worthy to be called a bash wizard, programs is a nice way to learn how to do complex shell scripting.