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自动化 mysql mysql_secure_installation 脚本但不符合预期

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自动化 mysql mysql_secure_installation 脚本但不符合预期

mysql是5.7.34 ubuntu 18.04

我写的脚本my.sh

#!/usr/bin/expect

spawn  mysql_secure_installation


expect {
             "Press y|Y for Yes, any other key for No" { send "n\r"; exp_continue }
             "New password" { send "123456\r"; exp_continue }
             "Re-enter new password" { send "123456\r"; exp_continue }
             "Remove anonymous users?" { send "y\r"; exp_continue }
             "Disallow root login remotely" { send "n\r"; exp_continue }
             "Remove test database and access to it" { send "Y\r"; exp_continue }
             "Reload privilege tables now" { send "Y\r"; exp_continue }
     }

./我的.sh

运行结果如下

为什么脚本没有按预期执行

root@fa244a50dc06:/# ./my.sh
spawn mysql_secure_installation

Securing the MySQL server deployment.

Connecting to MySQL using a blank password.

VALIDATE PASSWORD PLUGIN can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD plugin?

Press y|Y for Yes, any other key for No: n
Please set the password for root here.

New password:

Re-enter new password:
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) : n

 ... skipping.


Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : n

 ... skipping.
By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.


Remove test database and access to it? (Press y|Y for Yes, any other key for No) : n

 ... skipping.
Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : n

 ... skipping.
All done!

答案1

你的第一行expect覆盖了其他所有内容：

Press y|Y for Yes, any other key for No

此字符串与每一行都匹配，因此send "n\r"; exp_continue将被运行。因此所有n响应都将被运行。

最简单的解决方案可能是将此行放在数组的末尾，expect以便它充当默认的捕获所有内容。

答案2

#!/usr/bin/expect

spawn  mysql_secure_installation


expect {
             "VALIDATE PASSWORD PLUGIN can be used to test passwords" { send "n\r"; exp_continue }
             "New password" { send "123456\r"; exp_continue }
             "Re-enter new password" { send "123456\r"; exp_continue }
             "Remove anonymous users?" { send "y\r"; exp_continue }
             "Disallow root login remotely" { send "n\r"; exp_continue }
             "Remove test database and access to it" { send "Y\r"; exp_continue }
             "Reload privilege tables now" { send "Y\r"; exp_continue }
        }

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