OS操作系统：CentOS release 6.8 (Final)

[root@sky9896chapter11]# vi createdatabase.sh #批量创建数据库

#!/bin/sh

PATH="/var/lib/MysqL/bin:$PATH"

MYUSER=root

MYPASS=*******

MYCMD="MysqL -u$MYUSER -p$MYPASS "

for dbname in test skyboy skygirl xiaoting bingbing

do

$MYCMD -e "create database$dbname"

Done

[root@sky9896chapter11]# vi dropdatabase.sh #批量删除数据库

#!/bin/sh

PATH="/var/lib/MysqL/bin:$PATH"

MYUSER=root

MYPASS=****

MYCMD="MysqL -u$MYUSER -p$MYPASS "

for dbname intest skyboy skygirl xiaoting bingbing

do

$MYCMD -e "drop database $dbname"

Done

[root@sky9896chapter11]# sh droopdatabase.sh

ERROR 1008(HY000) at line 1: Can't drop database 'test'; database doesn't exist

ERROR 1008(HY000) at line 1: Can't drop database 'skyboy'; database doesn't exist

ERROR 1008(HY000) at line 1: Can't drop database 'skygirl'; database doesn't exist

ERROR 1008(HY000) at line 1: Can't drop database 'xiaoting'; database doesn't exist

ERROR 1008(HY000) at line 1: Can't drop database 'bingbing'; database doesn't exist

[root@sky9896chapter11]# sh createdatabase.sh

ERROR 1007(HY000) at line 1: Can't create database 'test'; database exists

ERROR 1007(HY000) at line 1: Can't create database 'skyboy'; database exists

ERROR 1007(HY000) at line 1: Can't create database 'skygirl'; database exists

ERROR 1007(HY000) at line 1: Can't create database 'xiaoting'; database exists

ERROR 1007(HY000) at line 1: Can't create database 'bingbing'; database exists