title: linux shell get name of file
body: <p>I am writting shell script.</p>
  
  <p>I have following files:</p>
  
  <pre><code>2012-03-08_16-37-41
  2012-03-08_16-37-43
  2012-03-08_16-37-46
  2012-03-08_16-37-55
  </code></pre>
  
  <p>Simple script:</p>
  
  <pre><code>#!/bin/bash
  FILENAME= ????
  echo $FILENAME
  </code></pre>
  
  <p>And <code>FILENAME</code> value should be <code>2012-03-08_16-37-55</code> (last element of sorted file name list). Also, begin of file name should be <code>2012</code>.</p>
  
  <p>How could I solve this problem?</p>