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How to search and replace



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

Thanks
Dan


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