Faster!

anagram.rb

#!/usr/bin/env ruby
 
file = File.open("/usr/share/dict/words")
 
def splitSortJoin(line)
  line.chomp.split('').sort
end
 
line_map = {}
 
match_keys = []
 
file.each_line do |line|
  line = line.chomp
  key = line.split('').sort.join
  line_map[key] ||= []
  line_map[key] << line
  if line_map[key].length > 1
    match_keys << key
  end
end
 
match_keys.each do |key|
  line_map[key].each { |word| puts "#{word}" }
  puts "--"
end