What happened to the old text-based tutorials?

It’s been a few months since I’ve looked at the unity documentation and I’m trying to introduce my friend to the program. We both share a hatred of video tutorials, and I remember Unity used to have really good text-based walkthrough of basic functions of the program and another for basic scripting.

Is there anywhere I can still find those?

I’m not familiar with them, but I assume they were removed after a major version change and they were no longer valid. Rather than update the old tutorials, they made video ones. Archive.org has old tutorials on it but there’s no guarantee that they’ll work any more. Depending on what you’re trying to show your friend, the user manual is text based.