It all started with realizing that the Google Calendar REST api was too much of a hassle to integrate for a one-off use case (need to change account settings, do a Oauth login & manage tokens...). I then remembered that calendar exports were just a few clicks away in the .ics format, so I decided to use that instead.

I couldn't find anything online other than half broken scripts or language-specific libraries to parse .ics files, so I then went ahead and wrote a straight forward, pure bash implementation for CLI usage.

Hope this is useful for others as well!

I put in a few examples to try out in the readme on Github, let me know if you try it out!