该脚本实现了以下几点功能:
1、在线备份mysql数据库;
2、将备份的日志存入日志文件;
3、压缩数据备份文件;
4、将压缩后的文件远程ftp到备份服务器;
5、删除本地备份超过7天的数据主要是防止因备份导致生产服务器磁盘空间的非正常增长带来性能瓶颈问题。
具体实现shell如下所示:
#!/bin/sh
#---------------------------------------------------------
# scriptname: erpbackup.sh
# version: 1.0 for linux
# method: backup mysqldb
# author: fengzhanhai
# history: create program V1.1 20110429 by Fengzhanhai
UserName='root'
AdminPwd='passw0rd'
DbName=erp
BakDir=/home/imu/db-backup/vpnback
LogFile=/home/imu/db-backup/vpnback/mysqlbak.log
DATE=`date +%Y%m%d%H%M`
DumpFile=vpndata$DATE.sql
GZDumpFile=$DumpFile.tgz
FtpServer=10.19.98.235
FtpTargetPath=/erp_backup/mysql
#main---------------------------------------------------------
echo $(date +"%y-%m-%d %H:%M:%S") backup begin >> $LogFile
cd $BakDir
#备份当天文件
/usr/local/mysql/bin/mysqldump -u$UserName -p$AdminPwd $DbName > $DumpFile
echo $(date +"%y-%m-%d %H:%M:%S") Dump Done >> $LogFile
#tar压缩文件
tar czvf $GZDumpFile $DumpFile >> $LogFile
#rm -f $DumpFile
echo $(date +"%y-%m-%d %H:%M:%S") $GZDumpFile compress done >> $LogFile
#上传到ftp服务器
ftp -v -n $FtpServer << END
user databack passw0rd
bin
cd $FtpTargetPath
put $GZDumpFile
bye
END
echo $(date +"%y-%m-%d %H:%M:%S") ftp $GZDumpFile compress done >> $LogFile
rm -f $GZDumpFile
#删除当前目录下7天前的文件备份文件
find $BakDir -name "vpndata*" -mtime +7 -exec rm {} \;
echo $(date +"%y-%m-%d %H:%M:%S") delete old file done >> $LogFile
#验证结果
ls -al $DumpFile >> $LogFile