foo 9 -2 PING localhost (127.0.0.1): 56 data bytes --- localhost ping statistics --- 1 packets transmitted, 1 packets received, 0.0% packet loss 10 PING localhost (127.0.0.1): 56 data bytes --- localhost ping statistics --- 1 packets transmitted, 1 packets received, 0.0% packet loss 11 PING localhost (127.0.0.1): 56 data bytes --- localhost ping statistics --- 1 packets transmitted, 1 packets received, 0.0% packet loss 12