Generate a base64 encoded md5 hash of a file in Ruby for use in http Content-MD5 header

gen_http_cont_md5.rb

require 'digest'

def main
 
  raise ArgumentError, 'Please specify a file to work with' unless ARGV.length == 1
  file_path = ARGV[0]
  digest = Digest::MD5.base64digest(File.read( file_path ))

  puts "The MD5 digest base64 encoded MD5 is #{digest} of file #{file_path}."
 
end
 
if __FILE__ == $0
    main()
end

thank you! works like charm