shell脚本编写主从centos6

版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。

本文链接： https://blog.csdn.net/a13568hki/article/details/102467970

主从centos7链接

执行之前配好ssh免密
和关闭防火墙
注意改成自己的IP

vim aa.sh

#!/bin/bash
yum -y install mysql mysql-server #主安装mysql
sed -i '/0/a\server-id=1' /etc/my.cnf   #sed修改主配置
sed -i '/1/a\log-bin=mysql-bin' /etc/my.cnf
service mysqld start       #启动mysql
mysql -e "grant all on *.* to he@'%' identified by '123';" #shell mysql授权
mysql -e "flush privileges;"
file=`mysql -e "show master status"|awk '/mysql/{print $1}'` #shell查看mysql二进日志
rz=`mysql -e "show master status"|awk '/mysql/{print $2}'`
yum -y install expect   #安装免交互
#以下属于expect免交互
/usr/bin/expect<<EOF
spawn ssh $2      
set timeout 1000
expect "]#" {send "yum -y install mysql mysql-server\n"}  
expect "]#" {send "sed -i '/0/aserver-id=2' /etc/my.cnf\n"}
expect "]#" {send "sed -i '/2/arelay-log=mysql-relay' /etc/my.cnf\n"}
expect "]#" {send "service mysqld start\n"} 
expect "]#" {send "mysql -e \"change master to master_host='$1',master_user='he',master_password='123',master_log_file='$file',master_log_pos=$rz;\"\n"}
expect "]#" {send "mysql -e 'start slave'\n"}
expect "]#" {send "exit\n"}
expect eof
EOF

sh aa.sh 主参数IP 从参数IP