title: How to reset android /data/data/com.xxx.xxx permissions linux?
body: <p>I made some changes and my apps are crashing. Somehow the permissions and usernames of my apps do not line up with the /data/data folder.    Each app's username does not line up with the apps' username on the filesystem.I need to reset the filesystem or the username somehow.</p>
  
  <p>I need either the name of the application username/group assignment file, or a method of resetting the permissions for all applications. </p>