``` ruby
words = ['word1','word2']
for file in Dir['**/*'].reject {|fn| File.directory?(fn) || fn == 'find.rb' } do
File.open(file).each_line.with_index do |line, i|
words.any? { |word| if(line.include?(word)) then puts(file + ':' + i.to_s ) end }
end
end
```