title: How to suppress all output of diff in shell scripting?
body: <p>Greetings,</p>
  
  <p>I was wondering if there was a way to suppress ALL output of the diff command
  so that it doesn't output the differences but only returns a success status?</p>
  
  <pre><code>diff $FILE1 $FILE2
  if [ $? -ne 0 ];then
      echo Does not match output.
  else
      echo Match.
  </code></pre>