Linux 7中配置MySQL的口令是非常簡單的。在這篇文章中，我們將為您提供一份易于理解的指南，以便您能夠成功地配置MySQL的密碼。

$ sudo yum install mysql-server
$ sudo systemctl start mysqld.service
$ sudo systemctl status mysqld.service

當您啟動MySQL以后，您可以通過運行mysql_secure_installation來設置密碼，并使用root用戶來登錄。

$ sudo mysql_secure_installation
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!
In order to log into MariaDB to secure it, we'll need the current
password for the root user. If you've just installed MariaDB, and
haven't set the root password yet, you should just press enter here.
Enter current password for root (enter for none): [ENTER]
OK, successfully used password, moving on...
Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorization.
Set root password? [Y/n] y
New password: 
Re-enter new password: 
Password updated successfully!
...

這就是Linux 7中配置MySQL口令的簡單過程。如果您按照以上步驟操作，您將在短時間內成功地設置好MySQL的密碼。