• AppleJack Project Page
  a must have for all macs (not snow compatible -yet) AppleJack is a shell script intended to assist you in trouble-shooting startup problems in Mac OS X. In many situations it can help resurrect an apparently dead system by cleaning up the mess left by system crashes: disk directory errors, buggy caches, corrupted preferences, etc.
  in Public bookmarks with mac musthave shell software troubleshoot by 5 users

musthave from all users