Ruby script to count words in a file and order them by occurrences

ruby_count_indexer.rb

# Script to index words inside a text file. 
# Words separated by spaces. 
# Usage: ruby indexer.rb /path/to/file.txt

file_path = ARGV[0] || "votacion.txt"
WORDS_COUNT = {}
file = File.open(file_path, "r") 

puts "Indexing #{file_path}"

file.each_line do |line|
  words = line.split 
  words.each do |word|
    word = word.gsub(/[,()'"]/,'')
    if WORDS_COUNT[word]
      WORDS_COUNT[word] += 1
    else
      WORDS_COUNT[word] = 1
    end
  end
end

puts "Indexed #{file_path}"

puts "Words count: "

WORDS_COUNT.sort {|a,b| a[1] <=> b[1]}.each do |key,value|
  puts "#{key} => #{value}"
end

puts "The end. "

Don't you think it will blow off heap, in case txt file is very large(say 1 TB)?

This really came in handy for me to use while making my girlfriends xmas present. I tweaked it and made it work for seeding a rails database but not having to spend that extra time writing from scratch was nice! http://jailee.us

Thanks!