Messily cleans cities

hs_citycleaner.rb

cities_array = IO.readlines('cities.txt')
cities_array.each do |entry|
  entry.gsub!("\\n","")
  entry.gsub!("{\"Name\":\"","")
  entry.gsub!(/\",\"Type\":\"City\",\"BID\":null,\"City\":null,\"State\":\"..\"}/,"")
  entry.gsub!("][","],[")
end
cities_array = cities_array.first.split(",").select{ |i| i != "[]" }
cities_array.each do |city|
  city.gsub!("[","")
  city.gsub!("]","")
  puts city
end

puts cities_array.size.to_s + " cities counted."