shell批量
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$port.cnf ) &
done
关闭脚本：stop.sh
#!/bin/bash
for port in {3390..3396}
do
(/export/servers/mysql/bin/mysqladmin -uroot -p -S /export/data/mysql/tmp/mysql$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：
#!/bin/bash
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")
do
$mysql -uroot -p123456 -S /export/data/mysql/tmp/mysql$i.sock -e "drop database \`$j\`"
done
done
安装多实例MySQL数据库,安装完成后默认无密码,一次性给所有实例的root账户创建密码：
#!/bin/bash
for i in {3361..3363}
do
/export/servers/mysql/bin/mysql -uroot -S /export/data/mysql/tmp/mysql$i.sock
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