title: Why is this complaining about having an extra operand?
body: <p>I'm trying to compare my output to my instructor's output and he gave us this set of commands to follow, but for the second to last command, it complains about having an extra operand in 'output.diff'.</p>
  
  <pre><code>$ gcc -ansi -Wall -Werror -lm -o myprint-badges print-badges32.o grove.c badges.c
  
  $./myprint-badges &gt; my.out
  $./print-badges32 &gt; alex.out
  $ diff my.out alex.out output.diff
  $ more output.diff
  </code></pre>
  
  <p>Why won't the second to last command work? </p>