Ruby on Rails domain checking script

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version:2.1
end:vcard

/*
This script uses whois program to check domain for "No match" record.
Example of usage:
$ ./ava.rb ruby{,-}snippets rubyzone.*
- rubysnippets.com
+ ruby-snippets.com
- rubyzone.com
- rubyzone.net
- rubyzone.org
*/

#!/usr/bin/env ruby -w

if ARGV.empty?
puts <<-T
domains availability checker by haqu
usage: ./ava.rb url[.tld|.*] ...
T
exit
end

domains = []

ARGV.each do |d|
if d.include?(".*")
dset = d.gsub(/\*/,"")
domains << [ "#{dset}com", "#{dset}net", "#{dset}org" ]
else
domains << d
end
end
domains.flatten!

domains.each do |d|
res, domain = "-", d
unless domain.include?(".")
domain += ".com"
end
whois = `whois #{domain}`
res = "+" if whois.include?( "No match" )
puts "#{res} #{domain}"
end

--