convert csv

#!/usr/bin/env ruby

require 'csv'
require 'json'

csv_data = CSV.read ARGV[0]
headings = csv_data[0].compact
result = []

csv_data[1..-1].each do |row|
    result << Hash[headings.zip row]
end

f = File.open("#{ARGV[0]}.json","w+")
f << result.to_json