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I'm trying to get my system profiler .spx file from a Time Machine backup. Specifically, I wish to know the serial number of the hard drive in my Mac. The first place I looked was /private/var/tmp/sysdiagnose_date/system_profiler.spx, but it appears that Time Machine doesn't back up the tmp folder. I'm running OS X 10.8.2.

Any help would be much appreciated!

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