title: File permission in linux vs. in windows
body: <p>In linux, if I have a file I'm sharing with a group, and I put the file on a USB memory stick, for example, and copy it to a computer that doesn't have the same group or users, does the file have no permissions for anyone on that new computer?  What if I bring a linux file that only lets user X to read it to a windows machine?  Who gets to read it on the windows machine? since user X (and group) doesn't exist on that machine.  </p>
  
  <p>What kind of security do I get copying a linux file to another linux machine? how about to a windows machine?</p>
  
  <p>What kind of security do I get copying a windows file to another windows machine?  how about to a linux machine?</p>
  
  <p>Please let me know.  </p>
  
  <p>jbu</p>