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Chapter 1. Mac Os X Annoyances > REPAIR PERMISSIONS TO FIX FILE GLITCHES

REPAIR PERMISSIONS TO FIX FILE GLITCHES

The Annoyance:

Argh! Some of my files and applications won't open and are exhibiting other weird behaviors. And my Mac is less responsive than usual. I didn't do anything to cause these problems. At least, I don't think I did.

The Fix:

Anything from a bad crash to a routine software installation can cause these problems. Or they can just arise over time. Fortunately, there's a good chance that repairing file permissions using Disk Utility will get your Mac working swimmingly again. Even if you are a seasoned Mac user, don't sweat it if you don't know about file permissions. The concept comes from Unix, and because Mac OS X is a Unix operating system, it has file permissions. In Unix, every file is owned by a user. You, the carbon-based life form sitting before your Mac, are only one such user. Other users include various Unix entities running on your Mac. The permissions tell the operating system who (or what) is allowed to read, write, and, in the case of programs, execute them. Occasionally, the permissions for various Unix system files get set incorrectly. You can use Disk Utility (Mac OS X 10.2 or later) to reset these permissions back to normal.


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