extract attachments from a folder of .eml

gistfile1.rb

#! /usr/bin/env ruby

require 'mail'

MAIL_PATH = "#{ARGV.first}/*.eml"
ATTACHMENTS_PATH = File.join(ENV['HOME'], 'found-attachments')

Dir[MAIL_PATH].each do |email|
  mail = Mail.read(email)

  unless mail.attachments.empty?
    mail.attachments.each do |attachment|
      filename = attachment.filename
      save_path = File.join(ATTACHMENTS_PATH, filename)

      if File.exist?(save_path)
        filename = Random.rand(1999).to_s + filename
        save_path = File.join(ATTACHMENTS_PATH, filename)
      end

      begin
        File.open(new_path, 'w+b', 0644) { |f| f.write attachment.body.decoded }
      rescue Exception => e
        puts "Unable to save data for #{filename} because #{e.message}"
      end
    end
  end
end