> systemctl stop mysqld.service
> systemctl set-environment MYSQLD_OPTS="--skip-grant-tables"
> systemctl start mysqld.service > mysql -uroot
mysql> USE mysql mysql> ALTER USER "root"@"localhost" IDENTIFIED BY "MyNewPassword"; mysql> FLUSH PRIVILEGES; mysql> quit
> systemctl stop mysqld.service > systemctl unset-environment MYSQLD_OPTS
> systemctl start mysqld.service
> mysql -uroot -p
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