$ cd ~/Library/Preferences
$ ls -1 | grep plist | head -10
AddressBookMe.plist
com.adiumX.adiumX.plist
com.adiumX.adiumX.plist.lockfile
com.apple.AddressBook.plist
com.apple.AddressBook.plist.lockfile
com.apple.BezelServices.plist
com.apple.BezelServices.plist.lockfile
com.apple.BluetoothAudio.plist
com.apple.Console.LSSharedFileList.plist
com.apple.Console.LSSharedFileList.plist.lockfile
กุญแจเหล่านี้มีไว้เพื่ออะไร?