Hi Khanh,
I already have #!/bin/bash. My firewall script works. When
I first learnt how to build one everyone was saying use eth0.
But I have now learnt to dynamically configure eth0.
I know how to print out the info from the command line but
when I include the same command in my script all hell breaks lose.
And the { print $2 } bit -> you should see what it does.
Santos
On Tue, 2003-02-04 at 00:34, Khanh Tran wrote:
> Are you trying to assign your external interface's IP to a variable for
> something? What does $2 look like? Chances are you are trying to do
> something with $2 as an IP, but really the value is probably set for
> "addr:1.2.3.4". You may also want to add a #!/bin/bash, or whatever your
> shell is to the top of the script if you are getting the right variable
> assignment.
>
> Khanh Tran
> Network Operations
> Sarah Lawrence College
>
> -----Original Message-----
> From: saint [mailto:nagajuna@optushome.com.au]
> Sent: Monday, February 03, 2003 8:14 AM
> To: Netfilter Mailing List
> Subject: iptables grep problems
>
>
> Hi all,
>
> It seems I'm in a bit of a bother. Here's my problem:
> I have a semi-permanent IP address provided by my ISP
> and I can't do one of two things:
> 1. use eth0, and
> 2. use a combination of grep, awk, & ifconfig.
>
> Normally, if I issue this from the bash shell:
>
> $ifconfig eth0 | grep 'inet addr' | awk '{print $2}'
>
> I get the intended result i.e the external interface's IP address.
> So why can't I get anything when I put this in the firewall script?
> Actually, I do get something: ERRORS!
>
> If someone would kindly help me with this problem
> and relieve my suffering it'll be very much appreciated.
>
> Thanks.
>
> Santos.
> Still learning.
>
>
>
