[筆記] 用 grep 找出符合 IP address樣式的紀錄

grep -Eo ‘[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}’

You forgot to set the qrcode for Alipay. Please set it in _config.yml.

You forgot to set the qrcode for Wechat. Please set it in _config.yml.

You forgot to set the business and currency_code for Paypal. Please set it in _config.yml.

You forgot to set the url Patreon. Please set it in _config.yml.

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