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yashh/gist:219354

Forked from jseifer/gist:217637
Created October 27, 2009 06:06
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gistfile1.rb
#! /usr/bin/env ruby
#
# Save in your path as "isreg" and chmod +x. Then: isreg domain.com
#
puts `whois #{ARGV[0]}` =~ /No match for \"#{ARGV[0]}\"/mi ? "No" : "Yes"
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