title: Open .ipynb in browser from command line
body: <p>How do I open a <code>.ipynb</code> file in the browser from the command line? 
  I've tried:</p>
  
  <pre><code>$ jupyter my_notebook.ipynb 
  </code></pre>
  
  <p>But I get the cryptic:</p>
  
  <pre><code>Error executing Jupyter command 'my_notebook.ipynb': [Errno 2] No such file or directory
  </code></pre>
  
  <p>It's weird because that file exists (and is readable) as named.</p>
  
  <p>I'm running:</p>
  
  <pre><code>$ jupyter --version
  4.4.0
  </code></pre>