title: Apache htpasswd secure password change
body: <p>My question is simple.</p>
  
  <p>How to allow users to change their passwords stored in some htpasswd file in linux without revealing the files content or allow users to modify other passwords? </p>
  
  <p>I tried to write a script to do that job using ssh and specialy-designed user but it leads noway. </p>
  
  <p>Please help.
  I am using Debian server "Lenny".</p>