10.6: How much of Snow Leopard isn't yet 64-bit?
Sep 18, '09 07:30:04AM
Contributed by: pamon
Run the following command in Terminal to see exactly how many of OS X's extensions are 64-bit and how many are still 32-bit:
file /System/Library/Extensions/*.kext/Contents/MacOS/* |grep -i x86_64 |nl |tail -1 |cut -f1 -f3 && file /System/Library/Extensions/*.kext/Contents/MacOS/* |grep -v x86_64 |nl |tail -1 |cut -f1 -f3
[robg adds: This command will take a few seconds to run. On my MacBook Pro, there are 129 64-bit extensions and 325 32-bit extensions.]
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Mac OS X Hints
http://hints.macworld.com/article.php?story=20090903073427275