Hi

I wana get the dns IP from /cat/resolv.conf
Here is my code
cat /etc/resolv.conf | cut -d" " -f2
But I get
my first DNS
the second DNS

I only want the first line displayed...please

Bye

try
head -n1 /etc/resolv.conf | cut -d" " -f2

instead of cat

It may be a job for sed in this case because, my /etc/resolv.conf has two lines before the actual dns addresses.
Head -n3 /etc/resolv.conf will also print those first two lines.

For example: I put it in file.txt and changed the names to protect the innocent.

cat file.txt
; generated by /sbin/dhclient-script
search ab.some.place.us
nameserver 123.123.123.12
nameserver 145.145.145.14
nameserver 122.122.122.12


head -n3 file.txt | cut -d" " -f2
generated
ab.some.place.us
123.123.123.12


Using sed, I can pick out one or more lines individually....

I'd usually use AWK for cherry-picking data from a file like that:

awk '/^nameserver/ {print $2; exit;}' file.txt

would give you the second field of the first line starting with "nameserver".

Thank you all guys...all the method worked...well I think I need to learn how to do that...I think I will start with sed...

Edit: Ive got this script in my firewall to get the ppp IP dynamically...

EXT_IP="`/sbin/ifconfig ppp0 | grep 'inet addr' | awk '{print $2}' | sed -e 's/$

There is grep, awk and sed... which is better for what...I mean is one better in doing one job than another...?