[ubuntu] [mysql 5.7] No password after installation? How to log in

Environment: (2020-04-21)

ubuntu LTS 18.04.1
mysql  Ver 14.14 Distrib 5.7.29, for Linux (x86_64) 

Find a random password

# 显示出mysql安装时的随机密码
sudo cat /etc/mysql/debian.cnf

# 用上面的用户登录
mysql -u debian-sys-maint -p
# 此时输入上面得到的密码

The process is shown in the figure:

mysql-init-random-pwd

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Origin www.cnblogs.com/CoderMonkie/p/login-mysql57.html