Linux环境一键执行脚本命令安装msyql，主打的就是便捷

#!/bin/bash set -x [ "$(whoami)" = "root" ] || exit 1 [ "$(ls *.rpm | wc -l)" = "7" ] || exit 1 test -f mysql-community-client-8.0.31-1.el7.x86_64.rpm && \ test -f mysql-community-client-plugins-8.0.31-1.el7.x86_64.rpm && \ test -f mysql-community-common-8.0.31-1.el7.x86_64.rpm && \ test -f mysql-community-icu-data-files-8.0.31-1.el7.x86_64.rpm && \ test -f mysql-community-libs-8.0.31-1.el7.x86_64.rpm && \ test -f mysql-community-libs-compat-8.0.31-1.el7.x86_64.rpm && \ test -f mysql-community-server-8.0.31-1.el7.x86_64.rpm || exit 1 # 卸载MySQL systemctl stop mysql mysqld 2>/dev/null rpm -qa | grep -i 'mysql\|mariadb' | xargs -n1 rpm -e --nodeps 2>/dev/null rm -rf /var/lib/mysql /var/log/mysqld.log /usr/lib64/mysql /etc/my.cnf /usr/my.cnf set -e # 安装并启动MySQL yum install -y *.rpm >/dev/null 2>&1 systemctl start mysqld #更改密码级别并重启MySQL sed -i '/\[mysqld\]/avalidate_password.length=4\nvalidate_password.policy=0' /etc/my.cnf systemctl restart mysqld # 更改MySQL配置 tpass=$(cat /var/log/mysqld.log | grep "temporary password" | awk '{print $NF}') cat << EOF | mysql -uroot -p"${tpass}" --connect-expired-password >/dev/null 2>&1 set password='000000'; update mysql.user set host='%' where user='root'; alter user 'root'@'%' identified with mysql_native_password by '000000'; flush privileges; EOF