title: Splitting CSV files on specific text
body: <p>I have got a system that generates CSV files containing time based data.
  Some files have data from two different dates. I want to break up these files into two files, one containing the data from the first day, the other containing the data from the next day. The original file looks like this:</p>
  
  <pre><code>09.01.2015 00:00:00,0385 - Veerhaven,VP01 in bedrijf hoog toerental,K,Process message.
  09.01.2015 00:00:00,0385 - Veerhaven,VP01 in bedrijf laag toerental,G,Process message.
  08.01.2015 23:59:55,1475 - Schaatsbaan,PO01 in bedrijf,G,Process message.
  08.01.2015 23:59:52,0311 - Abraham van Stolkweg,PO01 in bedrijf,G,Process message.
  </code></pre>
  
  <p>The first 10 Characters are the date of the event. I want to break up the file in two output files seperating the data from the two days. I have to do this using batch processing because it has to be done every day over a lot of files.</p>
  
  <p>I hope someone can help me on my way. Thanks in advance.</p>