title: Extract IP from netstat output
body: <p>The netstat output contains thing like...</p>
  
  <pre><code>tcp        0      0 0.0.0.0:80       221.126.149.99:51973    ESTABLISHED 23879/apache2
  tcp        0      0 0.0.0.0:80        66.249.68.154:40883     ESTABLISHED 23899/apache2
  tcp        0      0 0.0.0.0:80       66.249.68.81:41200      ESTABLISHED 23892/apache2
  tcp        0      0 0.0.0.0:80       66.249.67.121:59355     ESTABLISHED 23905/apache2
  tcp        0   4465 0.0.0.0:80       110.75.175.27:48139     ESTABLISHED 23901/apache2
  </code></pre>
  
  <p>I use this commands</p>
  
  <pre><code>netstat -anpt|grep apache2 |grep ESTABLISHED | awk -F "[ :]" '{print $4}'
  </code></pre>
  
  <p>I was not able to get the IP, any hints?</p>