A Bash Shell Script to do Multiple Whois Lookups
On a recent project, I was given a list of about 30 domains to redirect to a new site. I needed to get a handle on where the domains were registered and where the DNS was hosted. I could have spent a lot of time typing “whois domain-name.com” into the terminal of my Mac, or write a shell script to do the lookups for me and write the results to a file that I could quickly examine. I already had all the domains in a text file. Here’s what I did:
#!/bin/bash
for domain in `cat domains.txt`
do
echo $domain
`whois $domain >> whois-results.txt`
done
You could take this a step further and do some regular expression matching to only get the lines of interest, but this needed to be quick and dirty.
Posted by Clay Simmons
In Web Development
On December 9, 2009
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