title: Invalid max count in grep function
body: <p>If I do a <code>find . -mmin -1</code> I get 'myfile' which was modified in last one minute.</p>
  
  <p>But when I want to search a particular string in that file by doing </p>
  
  <pre><code>grep 'myString' myfile -mmin -1 
  </code></pre>
  
  <p>I get the error <code>invalid max count</code></p>
  
  <p>I also tried</p>
  
  <pre><code>find . -name "myfile" -exec grep 'myString' myfile -mmin -5
  </code></pre>
  
  <p>I get the error <code>find: missing argument to -exec</code></p>
  
  <p>So my question is <code>How do I grep or cat only the changes within a file which happened in last 5 mins. Now that I know the file name which was modified during that period.</code></p>
  
  <p>Suggestions? Thanks in adv. </p>