title: Comparison of the contents of two text file in Ubuntu
body: <p>I have two text files with 2.4M. I like to compare what are the differences in these two text files. I used Kompare. It worked but it is slow for a big file size. Looks like never finish the comparison. </p>
  
  <p>What could be the best software in Ubuntu or Windows to compare and visualize the contents of two text files . </p>