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re: Using the CSV module to avoid any quoting pitfalls. :) require 'CSV' require 'date' require 'JSON' data = JSON.parse(`curl #{ARGV[0]}`) filenam...
 

Ruby is still one of the most pretty languages!
Maybe you can use the open(url).read from require 'open-uri' instead of curl to allow it to run on other systems 🙂

Alernatively could look like this:

CSV.open "#{Date.today.strftime '%Y%m%d'}.csv", 'w' do |csv|
  JSON.parse(open(ARGV[0]).read).each { |x| csv << x if x['creditcard'] }
end
 

Oh, I like that!

  1. I didn't know about those extra options for CSV. Awesome.
  2. I didn't know about the open-uri built-in. Also awesome.
  3. I love the short and sweet each block! It even feels a little Pythonic, which is nice. Also also awesome!
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