[16,17,20,37,38] Support for both versions in scripts

Do you have examples of scenarios where you ran into hard to debug problems?

While testing my script, I had a variable already set in my env without me realising it, and then was wondering why op seemed to fetch wrong value to it. :smile:

Do you agree that OS envvars should be opt-out or do you think it'd be better for them to be opt-in?

I think that the most common usage should dictate the defaults. Normally at least I would expect that already set variables override the ones from a config file (be that .env in this case).

Let's see where to go with the direnv extension. I'm more than happy to have all possible cases handled by op and maintained by you. :)
Maybe just revert to using just op read and support fetching one var at a time. Even though over-engineering is fun.

Thanks again for all the info and ideas. I also like Makefiles. And service accounts, 1Password Connect, SCIM, and whatnot really add options to choose from.