启动脚本：start.sh
#!/bin/bash
for port in {3390..3396}
do
(/export/servers/mysql/bin/mysqld_safe --defaults-file=/export/servers/mysql/etc/my$port.cnf ) &
done
关闭脚本：stop.sh
#!/bin/bash
(/export/servers/mysql/bin/mysqladmin -uroot -p -S /export/data/mysql/tmp/mysql$port.sock shutdown) &
done
在测试环境中,在一台服务器上创建多个实例,在每个实例中一个一个删库比较麻烦,因此用下面脚本,可以直接删除所有库,除了系统库以外：
mysql=/export/servers/mysql/bin/mysql
for i in {3361..3362}
do
for j in $($mysql -uroot -p123456 -S /export/data/mysql/tmp/mysql$i.sock -e "show databases" |egrep -v "information_schema|mysql|test|performance_schema|Database")
$mysql -uroot -p123456 -S /export/data/mysql/tmp/mysql$i.sock -e "drop database \`$j\`"
安装多实例MySQL数据库,安装完成后默认无密码,一次性给所有实例的root账户创建密码：
for i in {3361..3363}
/export/servers/mysql/bin/mysql -uroot -S /export/data/mysql/tmp/mysql$i.sock <<EOF
use mysql;
update user set password=password('123456') where user='root';
flush privileges;
EOF
[root@yoon export]# vi gunzip.sh
!/bin/bash
path=/export/backup ----备份文件目录路径
for i in `ls ${path}/*`
/bin/gunzip $i
[root@yoon export]# chmod +x gunzip.sh
[root@yoon export]# sh gunzip.sh
==========================================