Can'；t从外部bash脚本正确设置MySQL密码

我有两个脚本——主脚本执行一些不同的操作并调用第二个脚本，第二个脚本安装MySQL

根据我的主要剧本，我做了如下工作：

...

read -p "Set the password for the database [min. 4 characters]: " MPASS

# Install MySQL
path/to/setup-mysql.sh "$MPASS"

mysql --user="root" --password=${MPASS} -e "GRANT ALL ON *.* TO root@'${IPADDRESS}' IDENTIFIED BY '${MPASS}';"
mysql --user="root" --password=${MPASS} -e "GRANT ALL ON *.* TO root@'%' IDENTIFIED BY '${MPASS}';"
service mysql restart

mysql --user="root" --password=${MPASS} -e "SET GLOBAL validate_password_policy = 'LOW'; SET GLOBAL validate_password_length = 4; CREATE USER 'johndoe'@'${IPADDRESS}' IDENTIFIED BY '${MPASS}';"
mysql --user="root" --password=${MPASS} -e "GRANT ALL ON *.* TO 'johndoe'@'${IPADDRESS}' IDENTIFIED BY '${MPASS}' WITH GRANT OPTION;"
mysql --user="root" --password=${MPASS} -e "GRANT ALL ON *.* TO 'johndoe'@'%' IDENTIFIED BY '${MPASS}' WITH GRANT OPTION;"
mysql --user="root" --password=${MPASS} -e "FLUSH PRIVILEGES;"

#!/bin/bash

export DEBIAN_FRONTEND=noninteractive

debconf-set-selections <<< "mysql-community-server mysql-community-server/data-dir select ''"
debconf-set-selections <<< "mysql-community-server mysql-community-server/root-pass password ${1}"
debconf-set-selections <<< "mysql-community-server mysql-community-server/re-root-pass password ${1}"

apt-get install -y mysql-server

# Start mysql on boot
update-rc.d mysql defaults

# Configure Password Expiration
echo "default_password_lifetime = 0" >> /etc/mysql/my.cnf

# Configure Access Permissions For Root
sed -i '/^bind-address/s/bind-address.*=.*/bind-address = */' /etc/mysql/my.cnf

而

setup mysql.sh

如下所示：

...

read -p "Set the password for the database [min. 4 characters]: " MPASS

# Install MySQL
path/to/setup-mysql.sh "$MPASS"

mysql --user="root" --password=${MPASS} -e "GRANT ALL ON *.* TO root@'${IPADDRESS}' IDENTIFIED BY '${MPASS}';"
mysql --user="root" --password=${MPASS} -e "GRANT ALL ON *.* TO root@'%' IDENTIFIED BY '${MPASS}';"
service mysql restart

mysql --user="root" --password=${MPASS} -e "SET GLOBAL validate_password_policy = 'LOW'; SET GLOBAL validate_password_length = 4; CREATE USER 'johndoe'@'${IPADDRESS}' IDENTIFIED BY '${MPASS}';"
mysql --user="root" --password=${MPASS} -e "GRANT ALL ON *.* TO 'johndoe'@'${IPADDRESS}' IDENTIFIED BY '${MPASS}' WITH GRANT OPTION;"
mysql --user="root" --password=${MPASS} -e "GRANT ALL ON *.* TO 'johndoe'@'%' IDENTIFIED BY '${MPASS}' WITH GRANT OPTION;"
mysql --user="root" --password=${MPASS} -e "FLUSH PRIVILEGES;"

#!/bin/bash

export DEBIAN_FRONTEND=noninteractive

debconf-set-selections <<< "mysql-community-server mysql-community-server/data-dir select ''"
debconf-set-selections <<< "mysql-community-server mysql-community-server/root-pass password ${1}"
debconf-set-selections <<< "mysql-community-server mysql-community-server/re-root-pass password ${1}"

apt-get install -y mysql-server

# Start mysql on boot
update-rc.d mysql defaults

# Configure Password Expiration
echo "default_password_lifetime = 0" >> /etc/mysql/my.cnf

# Configure Access Permissions For Root
sed -i '/^bind-address/s/bind-address.*=.*/bind-address = */' /etc/mysql/my.cnf

上面说密码是错的。当我尝试手动登录时，它不会工作。当我跳过密码字段（

mysql-u root

）时，它就工作了。所以根本没有设置密码

另外，当我在

setup mysql.sh

中执行

echo$1

时，它正确地显示了

mpas

包含的内容

---

为什么不为MySQL安装正确设置密码。我在这里真的很困惑。

看起来您正在编写一个MySQL安装后初始化shell脚本

在我个人看来：改变你的shell脚本设计方法。

在脚本中，使用

mysql--user=“root”--password=${MPASS}

提示错误信息。您可以使用mysql参数--defaults文件，将mysql登录用户

root

和相应的密码写入临时文件，如

[client]
user=root
password=YOURPASSWORD

假设文件路径是

/tmp/mysql.cnf

（分配变量

mysql\u my\u cnf

）

然后使用

mysql--defaults file=“$mysql\u my\u cnf”

login，它将成功登录

将变量分配给

mysql--defaults file=“$mysql\u my\u cnf”

，例如

mysql\u命令

旧方法 新方法 你可以试试

附言 我写了一封信，可能对你有帮助

${mysql_command} -e "GRANT ALL ON *.* TO root@'${IPADDRESS}' IDENTIFIED BY '${MPASS}';"