System logs?

When I want to see the value of a parameter in z-wave I was told to go to Developer Tools > Services, and query the item I want to find info on. Problem is nothing shows on the screen. So I was told to go to the system logs but I can’t find them for my build. Basically built a Ubuntu virtual and installed Docker and besides a bunch of other things:

curl -sL | bash -s

How would I see the results of my queries?

In your /config/home-assistant.log or /config/OZW_Log.txt