I am trying to create a script to determine the destination of time machine on a number of computers I manage. It shows very clearly via Time Machine Settings in System Prefs. I need to be able to find that info via command line.
2 Answers
The tmutil utility does exactly that, but I think it was only added in Lion.
As an added bonus, Apple doesn't document the tmutil argument you'll need, but I dug through the output of "strings /usr/bin/tmutil" and found this, which is what you're looking for:
tmutil destinationinfo
Also, "tmutil status" will tell you if a backup is currently running. It's another undocumented command.
In this link you can find the answer: https://superuser.com/questions/20887/in-what-preference-file-does-time-machine-store-the-backup-volume-name
/Library/Preferences/com.apple.TimeMachine.plist
