Finding out my machine's UUID?

[Hippo Man]

I'm running 10.5.8, and I have noticed in ~/Library/Preferences/ByHost that the plist files now are all suffixed with a UUID instead of my machine's mac address.

Is there a command I can run (via a Terminal session) which will return that UUID for my machine?

Thanks in advance.

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[Hippo Man]

I found out the answer ... or at least an answer:

system_profiler | grep 'Hardware UUID'

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