awk question

[jo90]

Hi,

How do I use awk to get just Ip addresses from a log file? I can do this to a point, however how go I get just the Ip addresses?

Thanks.

 

[olded]

Jo90:

It depends on the structure of your log file. How about posting a sample.

Regards,

Ed

 

[jo90]

Ed,

I can get ip addesses using something like,
{ print $6 }, however I wish to pick out entries based on 123.123.123.123 - ie I wish to test for ever line with a 4 dot IP address....

Thanks
Jo

 

[vgersh99]

The simplest pattern to match is:

^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$

but........ to design the mattern to match ANY IP address spec is extremely difficult. I'd suggest reading Friedl's "Regular Expressions" book on pp. 123-125 vlad
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