Parsing dig output consistently
Mark Andrews
marka at isc.org
Wed Sep 17 11:57:04 UTC 2014
awk '$5 == "status:" { rcode = $6 } $3 == "SOA" { print $1, rcode }'
In message <54197448.1000801 at ripe.net>, Anand Buddhdev writes:
> Hello people,
>
> I've been trying to figure out how to use dig in a shell script to send
> a bunch of queries, and then parse the output with awk. I have a file
> called "myzones" containing the zones I want to query:
>
> example.com
> example.org
> example.net
>
> If I run:
>
> dig @server -t soa +norec +noall +question +answer -f myzones
>
> I get output like this:
>
> ;example.com. IN SOA
> example.com. 3600 IN SOA ( ... )
> ;example.org. IN SOA
> example.org. 3600 IN SOA ( ... )
> ;example.net. IN SOA
> example.net. 3600 IN SOA ( ... )
>
> What I'm missing is the header and flags section, because I also want to
> see the RCODE and the flags. However, I don't know which option to dig
> will give me:
>
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41562
> ;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
> ;example.com. IN SOA
> example.com. 3600 IN SOA ( ... )
>
> Actually, I am not really interested in the answer either. All I want
> are lines showing me the RCODE and the question, which I can match up
> and determine whether a server is returning NOERROR, REFUSED or SERVFAIL
> for a given zone. Is this possible?
>
> Regards,
>
> Anand
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--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
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