foo.rb

require 'csv'

file_path = 'hack_channel_offers_sc.csv'
CSV.open(file_path, 'r') do |category_id, offer_id, offer_name, score|
  printf '.'
end
printf "\n"

gistfile1.txt

James-Denton:~ jdenton$ cat hack_channel_offers_sc.csv | wc -l
    1388
James-Denton:~ jdenton$ ruby foo.rb 
.