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コマンドラインで Ruby を使って YAML <=> JSON の変換を行うワンライナー

Last updated at Posted at 2021-07-07

JSON => YAML

$ ruby -rjson -ryaml -e 'print JSON.load(STDIN.read).to_yaml' < foo.json

YAML => JSON

$ ruby -rjson -ryaml -e 'print YAML.load(STDIN.read).to_json' < foo.yml

YAML => JSON (pretty)

$ ruby -rjson -ryaml -e 'print JSON.pretty_generate(YAML.load(STDIN.read))' < foo.yml
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