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A caution on using zip for backups
Authored by: ojohns on Nov 30, '06 11:10:45AM

OS X does use to *unzip* archived files. But I see no evidence that it uses either gzip or that app to *create* its zip archives. When OS X is in the process of creating a large archive, both ps and top show nothing relevant running except Finder itself. And,

nm /System/Library/CoreServices/ | grep zip

nm /System/Library/CoreServices/ | grep BOMArchive

both give empty results. This is why I surmised that OS X *creates* the zip archive using code internal to Finder itself.


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