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MySQL8.0のtemporary passwordについて

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超小ネタ。いつか忘れると思ったのでメモ。

MySQL5.7以降はMySQLのインストール後/var/log/mysqld.logにrootのtemporary passwordが出力されます。
5.7だとこんな感じ。

2018-12-01T00:00:00.000000Z 1 [Note] A temporary password is generated for root@localhost: xxxxxxxxxxxx

MySQL8.0では以下のようになりました。

2018-12-01T00:00:00.000000Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: xxxxxxxxxxxx

2単語増えました。なのでawkでパスワードだけ抜き出す場合は5.7だと

cat /var/log/mysqld.log | grep 'temporary password' | awk '{print $11}'

でしたが、8.0では

cat /var/log/mysqld.log | grep 'temporary password' | awk '{print $13}'

になりました。
Ansibleのymlとかに埋めてる場合は注意が必要です。

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