Count the number of occurrences of each unicode character in a bunch of files

unicode_glyph_count.rb

require 'json'

all_chars = {}

Dir["**/*.md"].each do |file|
  character_data = IO.read(file).each_char.each_with_object(Hash.new(0)) do |word,counts|
    counts[word] += 1
  end

  all_chars.merge!(character_data) do |_, oldval, newval|
    oldval + newval
  end
end

all_chars.sort_by {|_key, value| value}.reverse.each do |x|
  puts "#{x[0]} - #{x[1]}"
end