title: Get a few lines of HDFS data
body: <p>I am having a <code>2 GB</code> data in my <code>HDFS</code>.</p>
  
  <p>Is it possible to get that data randomly.
  Like we do in the Unix command line </p>
  
  <pre><code>cat iris2.csv |head -n 50
  </code></pre>