whois scripting

stesecci · #1 (**permalink**) 11-06-2008

Hi guys,

I need a script that given an IP address, say IPA, do the following:

- queries "whois IPA"
- extracts, from the whois answer, the IP network string indicated after the string "route:",
- searches the IP network string in a given text file, say CIDR2ASN.txt, which has several lines, each line containing an IP network string and a number next (the ASN, autonomous system number indeed),
- gets the ASN and display it or save it into a file.

I know a little about unix scripting... I suppose I should use grep and cat commands within a for cycle and/or a case nest, any suggestion?

Best,
Ste

otheus · #2 (**permalink**) 11-07-2008

I don't know what "route" is. Your script will need other things, such as auto-detect of a forwarded whois-entry. But here's a start.

Code:

dnshosts=` whois tiscover.com @whois.ascio.com | awk '/Domain servers.*:/,0' | awk -v IGNORECASE=1 '/'tiscover.com'/  { print $1 }' `
for hostname in $dnshosts ; do 
  grep -F $hostname CIDR2ASN.txt
done

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