Is it possible to know the .plist file location which is loaded into the launchctl command?
The label name is listed with \"launchctl list\" and its contents can be view
As of macOS 10.12.6 (not sure about earlier versions) it is possible to invoke: launchctl dumpstate
and you will get a wealth of information about all running processes
Look for as the first line of info pertaining to that job
Here's a one liner to get all the active daemons and their plist paths:
grep -B 1 -A 1 "active count = 1$" <<< "$(launchctl dumpstate)"