mysql数据库自动备份 保留最近5天备份

#!/bin/bash

# Name:bakmysql.sh

# This is a ShellScript For Auto DB Backup and Delete old Backup

#

backupdir=/bak/path //备份到的目录

time=` date +%Y%m%d%H `

/phpstudy/mysql/bin/mysqldump -uusername -p123456 -h127.0.0.1 db | gzip > $backupdir/bakname$time.sql.gz

//压缩文件

#

find $backupdir -name "bakname*.sql.gz" -type f -mtime +5 -exec rm {} \; > /dev/null 2>&1 ?

//保存留最近5天的备份文件删除之前文件