Recipe: Let us ping!

ping
====
$ ping ADDRESS

$ ping 192.168.0.1 
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data. 
64 bytes from 192.168.0.1: icmp_seq=1 ttl=64 time=1.44 ms 
^C 
--- 192.168.0.1 ping statistics --- 
1 packets transmitted, 1 received, 0% packet loss, time 0ms 
rtt min/avg/max/mdev = 1.440/1.440/1.440/0.000 ms

$ ping google.com 
PING google.com (209.85.153.104) 56(84) bytes of data. 
64 bytes from bom01s01-in-f104.1e100.net (209.85.153.104): icmp_seq=1 ttl=53 time=123 ms 
^C 
--- google.com ping statistics --- 
1 packets transmitted, 1 received, 0% packet loss, time 0ms 
rtt min/avg/max/mdev = 123.388/123.388/123.388/0.000 ms


When host is unreachable:
$ ping 192.168.0.99 
PING 192.168.0.99 (192.168.0.99) 56(84) bytes of data. 
From 192.168.0.82 icmp_seq=1 Destination Host Unreachable 
From 192.168.0.82 icmp_seq=2 Destination Host Unreachable

Set packet count with -c
========================

$ ping 192.168.0.1 -c 2 
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data. 
64 bytes from 192.168.0.1: icmp_seq=1 ttl=64 time=4.02 ms 
64 bytes from 192.168.0.1: icmp_seq=2 ttl=64 time=1.03 ms 

--- 192.168.0.1 ping statistics --- 
2 packets transmitted, 2 received, 0% packet loss, time 1001ms 
rtt min/avg/max/mdev = 1.039/2.533/4.028/1.495 ms 


Check for ping status
=====================
$ ping domain -c2 
if [ $? -eq 0 ];
then
	echo Successful ;
else
	echo Failure ;
fi