hi all!
This script is no long maintained, however i do have a friend who has made a far better solution to this problem!
please see https://github.com/totallynotinteresting/crossover2 for more info :)
if possible could you please star his repo too?

@cassettesgoboom I saw this script somewhere, use it for educational purposes only:
https://web.archive.org/web/20260430194406/https://gist.githubusercontent.com/knowlet/eb2f0501b04f0c50eae5bfdd182d665c/raw/a769e822998b81dbc1d9777419a3d41407f39daa/crossover.sh