how to change folder owner and permission
=========================================


1. display the owner and permission

   ls -l /media/

   drwxrwxr-t 4 root plugdev 4096 2009-11-16 12:14 newDisk500GB


2. change

   sudo chown -R root:ftpgroup /media/newDisk500GB
   sudo chmod -R 1775 /media/newDisk500GB

   (or: sudo chmod -R 1775 /media/newDisk500GB)
   (1 - the user can only delete their own files)