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#!/bin/bash#cript:mysqlbackup.sh#Version:Release 2.0#author:www.dba-china.com#date:2011-10-27#以下配置信息请自己修改mysql_user="root" #MySQL备份用户
mysql_password="password" #MySQL备份用户的密码
mysql_host="127.0.0.1" #要备份的主机，一般为localhost
mysql_port="3306" #MySQL端口号，一般为3306
backup_db_arr=("cms" "ad") #要备份的数据库名称，多个用空格分开隔开 如("db1" "db2" "db3")
backup_location='/home/lhb/backup_mysql_data' #备份数据存放位置，末尾请不要带"/",此项可以保持默认，程序会自动创建文件夹
expire_backup_delete="ON" #是否开启过期备份删除 ON为开启 OFF为关闭
expire_days=40 #过期时间天数 默认为三天，此项只有在expire_backup_delete开启时有效
#以下配置请保持默认不要修改backup_time=`date +%Y%m%d%H%M` #定义备份详细时间
backup_Ymd=`date +%Y%m%d` #定义备份目录中的年月日时间
backup_3ago=`date -d '3 days ago' +%Y%m%d` #3天之前的日期
backup_dir=$backup_location/$backup_Ymd #备份文件夹全路径
welcome_msg="Welcome to use MySQL backup tools!" #欢迎语
#判断MYSQL是否启动,mysql没有启动则备份退出mysql_ps=`ps -ef |grep mysql |wc -l`
mysql_listen=`netstat -an |grep LISTEN |grep $mysql_port|wc -l`
if [ [$mysql_ps == 0] -o [$mysql_listen == 0] ]; then
echo "ERROR:MySQL is not running! backup stop!"
exit
else echo $welcome_msg
fi#连接到mysql数据库，无法连接则备份退出mysql -h$mysql_host -P$mysql_port -u$mysql_user -p$mysql_password <<enduse mysql;select host,user from user where user='root' and host='localhost';
exitendflag=`echo $?`
if [ $flag != "0" ]; then
echo "ERROR:Can't connect mysql server! backup stop!"
exit
else echo "MySQL connect ok! Please wait......"
#判断有没有定义备份的数据库，如果定义则开始备份，否则退出备份
if [ "$backup_db_arr" != "" ];then
#dbnames=$(cut -d ',' -f1-5 $backup_database)
#echo "arr is (${backup_db_arr[@]})"
for dbname in ${backup_db_arr[@]}
do
echo "database $dbname backup start..."
`mkdir -p $backup_dir`
`mysqldump -h$mysql_host -P$mysql_port -u$mysql_user -p$mysql_password $dbname > $backup_dir/$dbname$backup_time.sql`
flag=`echo $?`
if [ $flag == "0" ];then
echo "database $dbname success backup to $backup_dir/$dbname$backup_time.sql"
else
echo "database $dbname backup fail!"
fi
done
else
echo "ERROR:No database to backup! backup stop"
exit
fi
#如果开启了删除过期备份，则进行删除操作
if [ "$expire_backup_delete" == "ON" -a "$backup_location" != "" ];then
`find $backup_location/ -type d -o -type f -ctime +$expire_days -exec rm -rf {} \;`
`find $backup_location/ -type d -empty -exec rm -rf {} \;`
echo "Expired backup data delete complete!"
fi
echo "All database backup success! Think you!"
exit
fi |
本文转自birdinroom 51CTO博客，原文链接：http://blog.51cto.com/birdinroom/1402108，如需转载请自行联系原作者