title: View random ngrok URL when run in background
body: <p>When I start an ngrok client with <code>./ngrok tcp 22</code> it runs in the foreground and I can see the randoming generated forwarding URL, such as <code>tcp://0.tcp.ngrok.io:12345 -&gt; localhost:22</code>.</p>
  
  <p>If I run in it the background with <code>./ngrok tcp &amp;</code>, I can't find any way to see the forwarding URL. How can I run ngrok in the background and still see the URL?</p>