How to find files related to a process I was using adb shell to have a peek at what's going on a Sony Xperia Z phone. I've noticed a few services (e.g. com.sonymobile.socialengine.plugins, com.google.android.youtube, etc.).

I'd like to know more about, like where would such a service live and what files it uses.

So far I've using find or other typical linux commands, but the phone isn't rooted so I'm a bit stuck.

Is there a way to do that ? If so, how ? If not, what are my options ?
Applications normally store their data in /data/data/com.foo.bar but you won't have access to that via adb on an unrooted device, by design.  I don't think there's a way around that without rooting the phone.