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curl コマンドで HTTP リダイレクト先の URL を取得する

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概要

  • curl コマンドで HTTP リダイレクト先の URL を取得する
  • 動作確認環境: curl 7.71.1 + macOS Catalina

使用するオプション

  • -w, --write-out : "%{redirect_url}" を指定してリダイレクト先URLを出力する
  • -s, --silent : サイレントモード。プログレスバーやエラーメッセージを出力しない
  • -o, --output : /dev/null を指定してレスポンスボディを出力しない

実行例

$ curl -w "%{redirect_url}" -s -o /dev/null https://bit.ly/3kmTOkc
https://t.co/yITSBp4ino
$ curl -w "%{redirect_url}" -s -o /dev/null https://t.co/yITSBp4ino
https://qiita.com/niwasawa
$ curl -w "%{redirect_url}" -s -o /dev/null https://qiita.com/niwasawa

参考資料

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