You will need to [grant permissions for each command line tool to run](https://apple.stackexchange.com/a/378558/5472) on Catalina.

Also, check for full paths everywhere...

<sup> I apologize for faffing about. Some robot deems an answer as short as my first one can not conceivably be an answer. So I’ll post some drivel, including this short rant, and then (possibly) edit it out later. </sup>