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Full Discussion: Pinging a domain
Top Forums Shell Programming and Scripting Pinging a domain Post 302586064 by vanessafan99 on Friday 30th of December 2011 05:10:01 AM
Old 12-30-2011
Quote:
Originally Posted by itkamaraj
Not tested

Code:
 
a="www.google.com"
ip=$(host $a | awk '/has add/ {print $4;exit}')
[ "$ip" -eq "" ] && echo "Not Valid Domain" || echo "IP address is : $ip"


host doesnt give the right ip of google

for example, Google is 74.125.227.49 (from a ping)

but
host google.com says:
google.com has address 173.194.34.52
google.com has address 173.194.34.48
google.com has address 173.194.34.49
google.com has address 173.194.34.50
google.com has address 173.194.34.51
google.com mail is handled by 30 alt2.aspmx.l.google.com.
google.com mail is handled by 40 alt3.aspmx.l.google.com.
google.com mail is handled by 50 alt4.aspmx.l.google.com.
google.com mail is handled by 10 aspmx.l.google.com.
google.com mail is handled by 20 alt1.aspmx.l.google.com.

---------- Post updated at 05:08 AM ---------- Previous update was at 05:01 AM ----------

Quote:
Originally Posted by ahamed101
Something like this?
Code:
val=$( ping $url -c 1 )
IP=$(echo $c | awk -F'[()]' '{print $6}')

If ping succeeded, the IP will have the ip address.

If your OS is solaris, then this will not work!

HTH
--ahamed


what's val?

the ping gives somethign like this:
ping "google.com" -c 1

how do you extract the ip from that?

PING google.com (173.194.34.48) 56(84) bytes of data.
64 bytes from par03s03-in-f16.1e100.net (173.194.34.48): icmp_seq=1 ttl=57 time=4.31 ms

--- google.com ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 4.314/4.314/4.314/0.000 ms


what if the url times out

like

ping nonexistentdomaifsffdsdfsdsfn.com
ping: unknown host nonexistentdomaifsffdsdfsdsfn.com

---------- Post updated at 05:10 AM ---------- Previous update was at 05:08 AM ----------

Quote:
Originally Posted by ahamed101
Something like this?
Code:
val=$( ping $url -c 1 )
IP=$(echo $c | awk -F'[()]' '{print $6}')

If ping succeeded, the IP will have the ip address.

If your OS is solaris, then this will not work!

HTH
--ahamed
is the code like this?
val=$( ping $domain -c 1 )
IP=$(echo $val | awk -F'[()]' '{print $6}')
 

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