topic Re: Need shell script to find IPs when instance names are known in Operating System - HP-UX

Need shell script to find IPs when instance names are known

Shivkumar — Mon, 17 Aug 2009 18:40:34 GMT

Hi,

I have a file having instance names.

Say for example:
abc
def
lmn
opr
xyz

I want to find IP corrresponding to each of the instance and want to write in a new file
having instance and its IP.

Can someone suggest a shell script ?

Thanks,
Shiv

Re: Need shell script to find IPs when instance names are known

James R. Ferguson — Mon, 17 Aug 2009 18:47:59 GMT

Hi Shiv:

Perhaps you want:

#!/usr/bin/sh
while read LAN X do
ifconfig ${LAN}|awk 'NR==1 {LAN=$1};NR==2 {print LAN,$2}'
done < fileofnames

Regards!

...JRF...

Re: Need shell script to find IPs when instance names are known

Shivkumar — Mon, 17 Aug 2009 19:14:39 GMT

In case i want to use nslookup on each of the instance having listed in a text file. Then how the script will look like ?

Re: Need shell script to find IPs when instance names are known

Mel Burslan — Mon, 17 Aug 2009 19:35:49 GMT

would you be looking for something like this then ?

for i in `cat /tmp/fileofinstances`
do
name=`ifconfig $i | awk 'NR==2 {print LAN,$2}'| \
nslookup|grep ^Name|cut -d: -f2| tr -s " "|cut -d" " -f 2`
echo $i" "$name
done