title: How to `ls` only one level deep?
body: <p>I have lots subdirectories containing data, and I want a short list of which jobs (subdirectories) I have. I'm not happy with the following command.</p>
  
  <pre><code>$ ls H2*
  H2a:
  energy.dat overlap.dat 
  norm.dat zdip.dat ...
  (much more)
  H2b:
  energy.dat overlap.dat
  norm.dat zdip.dat ... 
  (much more)
  </code></pre>
  
  <p>This needless clutter defeats the purpose of the wildcard (limiting the output). How can I limit the output to one level deep? I'd like to see the following output </p>
  
  <pre><code>H2a/ H2b/ H2z/
  </code></pre>
  
  <p>Thanks for your help,
  Nick</p>