How do I get this sqlite3 command to work on my Chromebook? When I type this in on my Windows machine it's not working either. Are there other steps I need to take first?

On your Chromebook, load the Linux subsystem, which you can find in settings.

It will give you a shell that will have SQLite.

For Windows, download the interactive command line tool from sqlite.org.

As a developer, on your development machine, if you use sqlite even infrequently, then no.

Anyone else, probably, but then why would you use this tool if you have no need for sqlite?

>my Chromebook

LOL

>my Windows

If you're the kind of person who even knows what SQL, SQLite or hell even a database is, you already know SQLite runs on pretty much anything.

Why would you assume that's the kind of person you're responding to? Their question alone leads me to believe it's exactly not that kind of person.