centos下mysql自动备份

="root" db_passwd="123456" db_name="test_db" #进入备份目录将之前的移动到old目录 cd /mnt/backup/bakmysql echo "you are in bakmysql directory now" mv test_db* /mnt/backup/bakmysqlold echo "Old databases are moved to bakmysqlold folder" #备份目录 backup_dir="/mnt/backup/bakmysql" #时间格式 time=$(date +"%Y-%m-%d") #mysql 备份的命令，注意有空格和没有空格 mysqldump -u$db_user -p$db_passwd $db_name > "$backup_dir/$db_name"-"$time.sql" echo "your database backup successfully completed" #这里将7天之前的备份文件删掉 SevenDays=$(date -d -7day +"%Y-%m-%d") if [ -f /mnt/backup/bakmysqlold/pashanhu-$SevenDays.sql ] then rm -rf /mnt/backup/bakmysqlold/pashanhu-$SevenDays.sql echo "you have delete 7days ago bak sql file " else echo "7days ago bak sql file not exist " echo "bash complete" fi

然后通过下面命令将脚步加入系统的计划任务

crontab -e

0 0 * * * ./usr/sbin/bakmysql.sh

保存退出以后就可以了。

也许需要重启crontab  启用命令：/sbin/service crond restart

centos下mysql自动备份

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