title: How to wait for key press in perl script?
body: <p>I am trying to execute a binary using the following command :</p>
  
  <pre><code>system("update");
  </code></pre>
  
  <p>After executing "update" command, the system prompts the following :</p>
  
  <pre><code>"Press ENTER to exit:"
  </code></pre>
  
  <p>How do I implement the above in my perl script?</p>