--On August 18, 2008 10:13:54 PM -0500 Jeffrey Goldberg
<[EMAIL PROTECTED]> wrote:
On Aug 18, 2008, at 9:03 PM, Paul Schmehl wrote:
I know I'm missing the obvious. I want to use an IP list to
generate an ip+hostname list. IOW, I want to go from this:
x.x.x.x
y.y.y.y
to this;
x.x.x.x foo.domain.tld
y.y..y.y bar.domain.tld
What's the best/easiest way to do this?
Easiest:
$ for i in `cat ip-list`; do
> echo -n "$i "
> dig +short -x $i
> done
Don't know why I didn't think of that.
I ended up using this:
for ip in `cat public_linux_ips`; do echo ${ip} `dig +short -x ${ip}`;
done > public_linux_ips_resolved
Which gave me the output I wanted. Thanks for the pointer.
Paul Schmehl ([EMAIL PROTECTED])
Senior Information Security Analyst
The University of Texas at Dallas
http://www.utdallas.edu/ir/security/
