title: Print Plot in Octave in Background
body: <p>Currently, I use <code>print -dpng foo.png</code> to print a plot to file in Octave 3.0.1 on Ubuntu.</p>
  
  <p>Sometimes, I generate thousands of images in a loop.</p>
  
  <p>Whenever a new image pops up, it grabs the mouse control precluding me from multitasking.</p>
  
  <p>Is there anyway to print silently or quietly?</p>