Uhm ... I assumed you were on Linux or OS X, if that's the case just open a terminal and paste that, I swear it's not malicious code.

Unsure where that could be if you're using Windows.

You know what would be fun to try? Give Codex full access and then ask it to delete that folder, lol.

I think he's joking I.e that command won't delete what's on the openai servers. But I could be wrong.