https://grafxflow.co.uk/blog/mac-os-x/delete-files-starting-dot-underscore-using-terminal
find . -type f -name "._*" -print But the more important part is how to delete them... well that is simple enough.
find . -type f -name "._*" -delete Plus if you want to list the files which have been deleted use this.
find . -type f -name "._*" -print -delete