title: MS-DOS delete with wildcards on ends
body: <p>What I want is a wildcard that means "contains"
  So if I have a directory with </p>
  
  <pre><code>a.txt
  b.param
  b.param.config
  </code></pre>
  
  <p>I would like to delete only <code>b.param</code> and <code>b.param.config</code></p>
  
  <p>I have tried <code>del *.param*</code>, <code>del *param*</code> ... but nothing seems to match anything for the beginning and end of the file but <strong>containing</strong> <code>param</code>.</p>
  
  <p>I am running the command from a batch file, so if the solution is in batch that will work as well.</p>