hash - How to compare two text files with value in ruby -

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i have 2 text file, , have 1 same field(pet). want combine 2 file , output new file contain 3 fields(owner pet buyer). code depends on if both file have same pet(name , number of pets) add name of buyer field of buyer in new file. should print out if 2 file have same filed of pet.

but code did not work want, need help, thanks.

input_file_1 (.txt)

owner pet michael dog, cat john pig, rabbit marry dog, cat

input_file_2 (.txt)

buyer pet sean cat, dog mark cat, dog joy dog, mouse tina cat, dog

i want result this:

owner pet buyer michael cat, dog sean, mark, tina mary cat, dog sean, mark, tina

my code looks this:

input_file_1 = argv[0] input_file_2 = argv[1]  hash_1 = {} file.readlines(input_file_1, "\n").each |line|   owner, pet = line.chomp.split("\t")   hash_1[owner] = pet end  hash_2 = {} file.readlines(input_file_2, "\n").each |line|   buyer, pet = line.chomp.split("\t")   hash_2[buyer] = pet end  hash_1.each |key, value|   if hash_2.has_value? value     puts "#{key}\t#{value}\t#{hash_2[key]}"   end end

i suggest use pet key:

input_file_1 = argv[0] input_file_2 = argv[1]  hash_1 = hash.new([]) file.readlines(input_file_1, "\n").each |line|   owner, pet = line.chomp.split("\t")   hash_1[pet] += [owner] end  hash_2 = hash.new([]) file.readlines(input_file_2, "\n").each |line|   buyer, pet = line.chomp.split("\t")   hash_2[pet] += [buyer] end  hash_1.each |pet, owners|   if hash_2.include? pet     owners.each |owner|       puts "#{owner}\t#{pet}\t#{hash_2[pet].join(", ")}"     end   end end

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