Nothing really, I was using dnsrez.sh with ip_origin.sh to get the geo-locations of websites,
$ ip_origin $( dnsrez www.endchan.xyz )
185.83.214.30 PT Portugal
$ ip_origin $( dnsrez www.endchan.xyz www.8ch.net )
185.83.214.30 PT Portugal
104.18.105.234 US United States
104.18.104.234 US United States
It's something to work with and modify the output as you see fit by querying the records and then formatting them. I haven't really done much with those scripts, and I didn't really publicize them, I just discretely added them to the list of files once they were working. dnslookup uses the python library pydns to do the query to your dns server. dnsrez uses the dnspython library.
These files aren't working on either of my main machines right now...I figured out the problem it was the shebang...
Change the shebang to this
#! /usr/bin/python2
/usr/bin/env python was sending it to python3 and screwing it up.
They're working again! I'm retarded...yay! I'll fix this and re-upload the files next week.
I guess you can input multiple website domains in the shell and it will spit them out one lookup at a time.
$ dnsrez www.endchan.org www.4chan.org www.cnn.com
185.83.214.102
104.16.117.221
104.16.120.221
104.16.116.221
104.16.119.221
104.16.118.221
151.101.53.67
$ dnslookup www.endchan.org www.4chan.org www.cnn.com >> dns_info.txt
$ nano dns_info.txt
That's basically what I was using it for, you can take it and make it suit your needs. You can write a script that calls it and formats the output into another text file to use later for whatever... I just use it to do multiple lookups in batch and output the results to the screen or a text file. Thanks for asking, hope that helps.