title: batch file to get file name up to specified character
body: <p>I have filenames in a directory in the format of <code>Mumbai Short Call Agentwise-MUMBAI SHORT CALL-3-01092016</code>.  I would like to strip off everything after the second hyphen and keep the first portion of the filename.</p>
  
  <p>Is there a good website that could direct me in how to accomplish this?  Or, maybe one of you dos batch experts can lead me in how to do this?</p>