title: How to look up a file and get its full path relative to current directory?
body: <p>Using the terminal, till now I have not been able to figure out how to find a file(relative path from current directory) which may lie several layers below in the directory structure.
  The best I figured out is :</p>
  
  <blockquote>
    <p>ls -R | grep file_name</p>
  </blockquote>
  
  <p>But this gives me only the filename. </p>