A helper that finds the informed word(when running in shell), and gives all the options, with the respectives I18n keys, like "activerecord.models.attributes.etc.name"

key_finder.rb

require 'yaml'

@sentence = ARGV.shift

def find(path, map)
  map.each do |key, value|
    if value.is_a? Hash
      find("#{path}#{key}.", value)
    else
      puts "#{path}#{key} - #{value}" if value =~ /#{@sentence}/
    end
  end
end

@translations = YAML.load(File.open('config/locales/pt.yml'))
find("", @translations)