title: echo -n is not working in zsh
body: <p>I am trying to truncate a file in Red Hat 4.8.5-11. I have zsh+prezto installed on my system. I am getting error:
  "zsh: file exists: {file_name}"</p>
  
  <p>I am running following command:</p>
  
  <pre><code>echo -n &gt; {file_name}
  </code></pre>
  
  <p>Same command is running just fine in bash. What could possibly be wrong?</p>