title: Unix Command Operations
body: <p>Lets say there is a file in linux which has lines which are space separated. </p>
  
  <p>e.g.</p>
  
  <pre><code>This is linux file
  This is linux text
  This is linux file 1
  This is linux file 3
  </code></pre>
  
  <p>Now I want to only print those rows which has 5th column present in the lines of file. In this example my output should be 3rd and 4th line ( with 1 and 3 as 5th column ) </p>
  
  <p>What is the best way to do it?</p>