[Cialug] saving a step in rdns lookups

[Zachary Kotlarek]

On Oct 8, 2008, at 10:46 AM, Tom Pohl wrote:

> You could always make a bash script that replaces the www.google.com  
> with $1 and basically do this:
>
> host www.google.com |grep address|awk '{print $4}'|xargs -n 1 host

Or remembering that awk is happy to match things you can skip grep and  
avoid weirdness when the hostname contains the substring "address" and  
is a CNAME or has an MX with:

host www.google.com | awk '$3 == "address" {print $4}'  | xargs -n 1  
host

	Zach

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