Remove Temporary Captcha Images
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desc "Remove captcha images"
task :remove_captcha_files do
captcha_img_path = "#{RAILS_ROOT}/public/images/captcha_img/"
Dir.foreach(captcha_img_path){|file| File.delete(captcha_img_path+file) if (/^.*.jpg$/).match(file)} if File.exist?(captcha_img_path)
end
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