Make nping output more like Unix ping?

[Jacek Wielemborek <wielemborekj1 () gmail com>]

Hi,

Here's an example output for my university's students' SSH server, pinging HTTP:

[d33tah-laptop][~] $ nping kolos.math.uni.lodz.pl

Starting Nping 0.6.40 ( http://nmap.org/nping ) at 2013-09-08 00:16 CEST
SENT (0.0072s) Starting TCP Handshake > kolos.math.uni.lodz.pl:80
(212.191.65.66:80)
RECV (0.0147s) Handshake with kolos.math.uni.lodz.pl:80
(212.191.65.66:80) completed
SENT (1.0113s) Starting TCP Handshake > kolos.math.uni.lodz.pl:80
(212.191.65.66:80)
RECV (1.0212s) Handshake with kolos.math.uni.lodz.pl:80
(212.191.65.66:80) completed
SENT (2.0132s) Starting TCP Handshake > kolos.math.uni.lodz.pl:80
(212.191.65.66:80)
RECV (2.0209s) Handshake with kolos.math.uni.lodz.pl:80
(212.191.65.66:80) completed
SENT (3.0165s) Starting TCP Handshake > kolos.math.uni.lodz.pl:80
(212.191.65.66:80)
RECV (3.0255s) Handshake with kolos.math.uni.lodz.pl:80
(212.191.65.66:80) completed
SENT (4.0183s) Starting TCP Handshake > kolos.math.uni.lodz.pl:80
(212.191.65.66:80)
RECV (4.0271s) Handshake with kolos.math.uni.lodz.pl:80
(212.191.65.66:80) completed

Max rtt: 10.014ms | Min rtt: 6.828ms | Avg rtt: 8.498ms
TCP connection attempts: 5 | Successful connections: 5 | Failed: 0 (0.00%)
Nping done: 1 IP address pinged in 4.03 seconds

When I run "ping", it the example output looks like this:

[d33tah-laptop][~] $ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=44 time=40.5 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=44 time=40.1 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=44 time=43.3 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=44 time=42.0 ms
^C
--- 8.8.8.8 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 40.180/41.544/43.373/1.299 ms

I like this kind of output, because it clearly shows me how the RTT
changes over time and lets me decide when I saw enough data. While I
can run nping -c 0, I cannot find an option to display RTTs for every
request. Is there a way to make nping -H show me how much time passed
between sending the last packet and receiving the response so I could
tell at a glance when the responses slowed down and how much?

Yours,
Jacek Wielemborek
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