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Re: How to search and replace



On Thu, Feb 02, 2006 at 03:20:42PM +0000, Dan Track wrote:
> Hi
> 
> I thought I'd ask this here as you guys helped me setup mrtg :)
> 
> I've got the following pattern in a text file in linux.
> Target[description1].1.3.4.6.5.3.:string 10 11 8 10
> Directory[description1]: server1
> 
> Target[description2].1.3.4.6.4.9.:string 10 17 5 24
> Directory[description2]: server2
> 
> What I would like to do is replace the ip of each with the following
> value of "Directory". So for example I would like
> Target[description1].1.3.4.6.5.3.:string 10 11 8 10 to become
> Target[description1].1.3.4.6.5.3.:string server1 example com
> 
> How can I accomplish this using either C,perl,sed or awk

If this is an ongoing issue, I'd check the documentation for the
originating program and see if there's an option to do reverse lookup
on the IP addresses.

Failing that, I'd a perl script to detect the IP addresses, do the
lookup, then substitute the domain name for the IP address.

-- 

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