Do you have any useful commands like these that can handle multi-byte characters in UTF-8? For instance, handling the zero-width space U+200B, which in UTF-8 ta

Do you have any useful commands like these that can handle multi-byte characters in UTF-8? For instance, handling the zero-width space U+200B, which in UTF-8 takes up more than one byte. I've got some custom scripts that do, I was wondering if there was already something out there.