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81 lines
2.4 KiB
81 lines
2.4 KiB
2 years ago
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#!/usr/bin/bash
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default_password="QianFeng@123"
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default_bakdir=/var/lib/mysql.bak
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checkos(){
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[[ -d /var/lib/mysql ]] && \
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echo "当前环境已安装mysql"
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#exit 1
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ping -W1 -c1 www.baidu.com &>/dev/null || \
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echo "网络异常，请检查" || exit 1
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[[ $UID -ne 0 ]] && echo "请使用root用户执行" && exit 1
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}
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uninstall() {
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pkill -9 mysql &>/dev/null
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mkdir -p ${default_bakdir}/`date +"%Y-%m-%d"`/$1 &>/dev/null
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mv /etc/my.cnf ${default_bakdir}/`date +"%Y-%m-%d"`/$1 &>/dev/null
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mv ~/.mysql_history ${default_bakdir}/`date +"%Y-%m-%d"`/$1 &>/dev/null
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mv /var/lib/mysql* ${default_bakdir}/`date +"%Y-%m-%d"`/$1 &>/dev/null
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yum erase -y `rpm -qa |grep mysql` && \
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rm -rf /var/log/mysqld.log
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echo "mysql已卸载，历史数据备份在${default_bakdir}/`date +"%Y-%m-%d"`"
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}
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install(){
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yum install -y yum-utils https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm || exit 2
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yum-config-manager --disable mysql{80,55,56,57}-community &>/dev/null
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case $1 in
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5.7)
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yum-config-manager --enable mysql57-community
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;;
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5.5)
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yum-config-manager --enable mysql55-community
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;;
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5.6)
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yum-config-manager --enable mysql56-community
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;;
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8.0)
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yum-config-manager --enable mysql80-community
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;;
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*)
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echo "无效版本"
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exit 2
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esac
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yum install -y mysql-community-server && \
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echo "mysql 安装完成，即将开始启动"
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}
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init(){
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systemctl start mysqld && \
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systemctl enable mysqld
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password=`grep "temporary password" /var/log/mysqld.log |awk '{password=$NF}END{print password}'`
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cat <<EOF
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数据库目录安装位置 /var/lib/mysql
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pid 文件位置 /var/run/mysqld/mysqld.pid
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错误日志位置 /var/log/mysqld.log
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socket文件位置 /var/lib/mysql/mysql.sock
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初始密码为 $password # mysql 5.5 5.6版本无初始密码
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最新密码为 "$default_password" #如果无法验证，请使用初始密码
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历史数据备份目录 ${default_bakdir}
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EOF
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password=${password:+-p\"$password\"}
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mysqladmin -uroot $password password "$default_password"
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}
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case $1 in
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Remove)
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uninstall
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;;
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Install)
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level=$2
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level=${level:=5.7}
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checkos
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uninstall $level
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install $level
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init $level
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;;
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*)
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echo -e "\033[31mUsage: \nsh $0 [Remove|Install]\nsh $0 Install [5.5|5.6|5.7|8.0] default 5.7\033[0m"
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esac
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