删除目录中的隐藏文件夹

#encoding: utf-8
#清除隐藏文件夹

require 'monitor'

puts ARGV[0] + '不是目录' if not File.directory?(ARGV[0])

q = Queue.new
q << ARGV[0]

while q.size > 0
	it = q.pop
	puts it
	file_and_dir = Dir.entries(it)
	Dir.chdir(it)
	file_and_dir.each do |item|
		next if item.eql?('.') or item.eql?('..')
		
		if File.directory?(item)
			if item[0].eql?('.')
                            system("rm -rf #{item}")
			else
				str = String.new(it)
				str << File::SEPARATOR << item
				q << str
			end
		end
	end
	Dir.chdir('..')
	i = 0
	while (i = it.index(File::SEPARATOR, i)) != nil
		Dir.chdir('..')
		i += 1
	end
end