title: How do I actually write "\n\r" to an environment variable?
body: <p>I have tried command substition, but it replaced '\n' with space</p>
  
  <pre><code>$ export GREENIE="$(python -c 'print "\n\r"*4')"
  $ echo $GREENIE |hexdump
  0000000 200d 200d 200d 0a0d                    
  0000008
  $ 
  </code></pre>
  
  <p>All I need is like this:</p>
  
  <pre><code>$ echo $GREENIE |hexdump
  00000000  0a0d 0a0d 0a0d 0a0d
  00000008
  $
  </code></pre>
  
  <p>How can I do that?</p>