Find adjectives in standard UNIX dictionary of words

find_adjectives.rb

words_path = [
    '/usr/share/dict/words'
    '/usr/dict/words'
  ].find { |path| File.exists?(path) }

fail "Couldn't find words file in the system" unless words_path

# I’m using each_line so we don’t load everything
# into memory at once, since the file is huge.
awesome_adjectives = File.open(words_path, 'r')
                       .each_line
                       .select { |line| line =~ /^[a-z].*ly$/ }