print out the names of unique files after scanning two directories

find_unique_file_two_arrays.rb

#!/usr/bin/ruby

dir1 = ARGV[0]
dir2 = ARGV[1]

dir1_arry = []
dir2_arry = []

dir1_files_list = %x[find #{dir1} -name "*"].split("\n")
dir2_files_list = %x[find #{dir2} -name "*"].split("\n")

dir1_files_list.each do |filename|
  filename.chomp!
  dir1_arry << filename.split('/')[-1]
end

puts "the length of the first directory is #{dir1_arry.length}"

dir2_files_list.each do |filename|
  filename.chomp!
  dir2_arry << filename.split('/')[-1]
end

puts "the length of the second directory is #{dir2_arry.length}"

puts "THIS MARKS THE END OF LOOPING THROUGH EACH DIRECTORY"

if dir1_arry.uniq.sort == dir2_arry.uniq.sort
	puts "there are no unique files, the files in each directory have the same name!"
else
	unique_files = dir1_arry - dir2_arry | dir2_arry - dir1_arry
	puts "the unique files are: "
	unique_files.each { |file| puts file }
end