title: Printing newlines with print() in R
body: <p>I am trying to print a multiline message in R. For example,</p>
  
  <pre><code>print("File not supplied.\nUsage: ./program F=filename",quote=0)
  </code></pre>
  
  <p>I get the output</p>
  
  <pre><code>File not supplied.\nUsage: ./program F=filename
  </code></pre>
  
  <p>instead of the desired</p>
  
  <pre><code>File not supplied.
  Usage: ./program F=filename
  </code></pre>