title: ping with absolute time stamp
body: <p>is it possible to put the system time in front of the ping for every ping packets?</p>
  
  <p>for instance, when I ping 1000 times per second, we see something like this:</p>
  
  <pre><code># ping 9.0.0.150 -i 0.001
  PING 9.0.0.150 (9.0.0.150) 56(84) bytes of data.
  64 bytes from 9.0.0.150: icmp_req=1 ttl=64 time=0.531 ms
  64 bytes from 9.0.0.150: icmp_req=2 ttl=64 time=0.473 ms
  64 bytes from 9.0.0.150: icmp_req=3 ttl=64 time=0.472 ms
  64 bytes from 9.0.0.150: icmp_req=4 ttl=64 time=0.497 ms
  </code></pre>
  
  <p>what I want is something like this:</p>
  
  <pre><code># ping 9.0.0.150 -i 0.001
  PING 9.0.0.150 (9.0.0.150) 56(84) bytes of data.
  12345123.122122 64 bytes from 9.0.0.150: icmp_req=1 ttl=64 time=0.531 ms
  12345123.123122 64 bytes from 9.0.0.150: icmp_req=2 ttl=64 time=0.473 ms
  12345123.124122 64 bytes from 9.0.0.150: icmp_req=3 ttl=64 time=0.472 ms
  12345123.125122 64 bytes from 9.0.0.150: icmp_req=4 ttl=64 time=0.497 ms
  </code></pre>
  
  <p>where the numbers in the prefix is system time.</p>