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rubyで標準入出力からCSVを扱う方法

Last updated at Posted at 2019-10-22

rubyで標準入出力からCSVを扱う方法

require 'csv'
# 標準入力からCSVパース
CSV(STDIN).each do |csv|
  p csv[0]
end

# 標準出力に出力
CSV(STDOUT) do |csv|
  csv << %w(col1 col2 col3)
end

に書いておいてほしいな。。

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