1,注意：source /etc/profile 不能少，否則crontab自動執行時無法保留資料。

2，crontab -e 輸入如下命令（每天3點執行）：

1 3 * * * /data/sh/bakMysqlShell.sh >/dev/null 2>&1

指令碼內容如下：

#!/bin/sh

#

#backup MysqlDataBase
source /etc/profile
user=root #DataBase userName
[email protected] #DataBase password
targetDIR=/disk3/data/mysqlBak/ #the dir which you want the sql to generate in; "/" is needed!
targetDataBase=uei #the dataBase name chich you want to backup


if [ ! -d $targetDIR ]; then  
echo "make new targetDIR"
mkdir -p $targetDIR
fi


folderName=`date +%Y%m%d%H%M%S`
echo $targetDataBase"資料庫備份開始"
mysqldump -u$user -p$password --opt -q --default-character-set=UTF8  $targetDataBase>$targetDIR$targetDataBase$folderName.sql
echo $targetDataBase"資料庫備份結束"


tar zcPvf $targetDIR$targetDataBase$folderName.sql.tar.gz $targetDIR$targetDataBase$folderName.sql
rm -fr $targetDIR$targetDataBase$folderName.sql