Simple bash script for creating JPEG versions of one or multiple HEIC files.
Copy the unheic executable to any location on your PATH.
Run it without any arguments to find out:
$ unheic
usage: unheic [--replace] [file ...]
Create JPEG versions of one or multiple HEIC files which can be located in
different directories: Each conversion result ends up 'next to' its
respective original or replaces it if the --replace flag is set. Uses sips.
The script summons sips to do the heavy lifting, so it'll only work on macOS.