unpack.rb

#!/usr/bin/ruby

dir = ARGV[0]

Dir.glob("#{dir}/*.zip").each do |f|
	basename = File.basename(f, ".zip")
	system "mkdir #{dir}/#{basename}"
	system "unzip #{f} -d #{dir}/#{basename}"

	arr = Dir.glob("#{dir}/#{basename}/*")
	if arr.size == 1 && File.directory?(arr[0])
		system "mv #{arr[0]}/* #{dir}/#{basename}/"
		system "rm -rfv #{arr[0]}"
	end
end