Filesystem Organization

Mac OS X defines several folders across the filesystem as holding special significance to the system. Individual applications, as well as the system software itself, consult these directories when scanning for certain types of software or resources installed on the machine. For example, a program that wants a list of fonts available to the whole system can look in /Library/Fonts and /System/Library/Fonts. Font files can certainly exist elsewhere in the filesystem, but relevant applications aren’t likely to find them unless they’re in a predictable place.

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