Here's `tac` in rust, with simd optimizations (in the simd branch, I haven't gotten around to releasing it although the only thing missing is dynamically detecting simd support instead of doing it at compile time):

https://github.com/neosmart/tac

and `rewrite`, which I've been told is akin to gnu sponge, "rewritten" in rust:

https://github.com/neosmart/rewrite

Here's tr in Perl: https://metacpan.org/dist/PerlPowerTools/source/bin/tr

Ripgrep is really the one that stood out for me. It feels substantially faster to use and does seem to do sane things more often than grep.

Would recommend anyone to try it.

> Ripgrep, fd, hyperfine, bat, exa, bottom, gdu, wc, sd, hexyl...

Thanks for that list! Is there any place where more of these "modern alternatives to coreutils" are collected?

What would you like it to do?