mysql数据库自动备份，并发送邮件通知

一前提系统环境：centos6.1脚本作用：备份指定服务器上的指定数据库，并通过scp传送到另一台备份主机，然后发送备份是否成功邮件到指定邮箱思路：首先在备份脚本

一 前提

系统环境：centos6.1

脚本作用：备份指定服务器上的指定数据库，并通过scp传送到另一台备份主机，然后发送备份是否成功邮件到指定邮箱

思路：首先在备份脚本中把备份报告导出为一个db_backup.log文件，然后邮件脚本会把这个log内容作为邮件内容发送给指定用户，也就实现了邮件通知

说明：如果需要备份到远程主机，需要首先做好ssh密钥认证，scp要使用到

二 备份脚本

备份脚本用法:如果需要备份某个数据库，在脚本后面添加一条备份命令，像下面这样

backup_db 10.90.5.50 dbname mysql 123456 innodb
函数名 mysql所在IP 所要备份的数据库名 连接数据库用户名 密码 数据库引擎类型

#!/bin/bash #name：backup_db.sh #Purpose: backup mysql database #Author: xxx #Date: 2014-08-26 #useage：backup_db IP databasename user password dbtype #example：backup_db 10.90.5.50 dbname mysql 123456 innodb #备份时间 DATE=`date -d"today" +%Y%m%d_%H%M%S` #前一个时间 DATE2=`date -d"1 month ago" +%Y%m%d_%H%M%S` #备份目录 HOMEDIR=/data/dbdata_backup MYSQLDUMP='/usr/local/mysql/bin/mysqldump' #删除上一次备份报告 rm -f $HOMEDIR/db_backup.log #################################################################function############################################################################ #backup function backup_db () { if [ $# -ne 5 ];then echo "Usage: backupdb IP dbname user password dbtype" echo "Please try again" exit 1 fi IP=$1 DBNAME=$2 USER=$3 PASSWORD=$4 DBTYPE=$5 echo "--------------------------start backup $IP $DBNAME db-------------------------------------" >> $HOMEDIR/db_backup.log echo "start date: `date +%Y%m%d_%H%M%S`" >> $HOMEDIR/db_backup.log if [ $DBTYPE = "innodb" ];then $MYSQLDUMP -u$USER -p$PASSWORD -h$IP --single-transaction --flush-logs --routines --events --master-data=2 "$DBNAME" > $HOMEDIR/$DBNAME/${DBNAME}_$DATE.sql if [ $? -ne 0 ];then echo "$IP $DBNAME $DBTYPE db backup is not success ,please check it out!" >> $HOMEDIR/db_backup.log else echo "$IP $DBNAME $DBTYPE db backup is success!" >> $HOMEDIR/db_backup.log fi else $MYSQLDUMP -u $USER -p$PASSWORD -h$IP -l --flush-logs --routines --events --master-data=2 "$DBNAME" > $HOMEDIR/$DBNAME/${DBNAME}_$DATE.sql if [ $? -ne 0 ];then echo "$IP $DBNAME $DBTYPE db backup is not success ,please check it out!" >> $HOMEDIR/db_backup.log else echo "$IP $DBNAME $DBTYPE db backup is success!" >> $HOMEDIR/db_backup.log fi fi echo "End date: `date +%Y%m%d_%H%M%S`" >> $HOMEDIR/db_backup.log gzip $HOMEDIR/$DBNAME/${DBNAME}_$DATE.sql SIZE=`du -sh $HOMEDIR/$DBNAME/${DBNAME}_$DATE.sql.gz | awk '{print $1}'` echo "the file size is: $SIZE" >> $HOMEDIR/db_backup.log echo "--------------------------end backup $IP $DBNAME db-------------------------------------" >> $HOMEDIR/db_backup.log #delete the backup files which were create two month ago rm -f $HOMEDIR/$DBNAME/${DBNAME}_$DATE2.sql.gz } #scp function : scp the backup file to another server as different place backup scp_function () { if [ $# -ne 1 ];then echo "Usage: scp_function dbname" echo "Please try again" exit 1 fi DBNAME=$1 scp -P52814 -i /home/lj/.ssh/id_rsa $HOMEDIR/$DBNAME/${DBNAME}_$DATE.sql.gz lj@10.90.5.50:/data/dbbackup/ if [ $? -ne 0 ];then echo "$DBNAME db backup data transfer is not success ,please check it out!" >> $HOMEDIR/db_backup.log else echo "$DBNAME db backup data transfer is success!" >> $HOMEDIR/db_backup.log fi } ##########################################################################function################################################################## #使用perl命令执行邮件脚本，，以发送备份报告，其中的sendmail.pl为下面发邮件脚本 perl /home/scripts/sendmail.pl

三 发送邮件脚本