MYSQL数据库备份脚本

将下面脚本与LINUX crotable相结合就可以做到定时，定点备份MYSQL了

#!/bin/bash

#This is a ShellScript For Auto DB Backup

#2012-10-31

#power xr.li

#Setting

#设置数据库名，数据库登录名，密码，备份路径，日志路径，数据文件位置，以及备份方式

#默认情况下备份方式是tar，还可以是mysqldump,mysqldotcopy

#默认情况下，用root(空)登录mysql数据库，备份至/home/spfs/backup/db_xxxxx.tgz

DBName=spfs

DBUser=root

DBPasswd=

BackupPath=/home/spfs/backup/

LogFile=/home/spfs/log/db_backup.log

#DBPath=/var/lib/mysql/

BackupMethod=mysqldump

#BackupMethod=mysqlhotcopy

#BackupMethod=tar

#Setting End

NewFile="$BackupPath"db_$(date +%y%m%d).tgz

DumpFile=db_$(date +%y%m%d).sql

OldFile="$BackupPath"db_$(date +%y%m%d --date='5 days ago').tgz

echo "-------------------------------------------" >> $LogFile

echo $(date +"%y-%m-%d %H:%M:%S") >> $LogFile

echo "--------------------------" >> $LogFile

#Delete Old File

if [ -f $OldFile ]

then

rm -f $OldFile >> $LogFile 2>&1

echo "[$OldFile]Delete Old File Success!" >> $LogFile

else

echo "[$OldFile]No Old Backup File!" >> $LogFile

fi

if [ -f $NewFile ]

then

echo "[$NewFile]The Backup File is exists,Can't Backup!" >> $LogFile

else

case $BackupMethod in

mysqldump)

if [ -z $DBPasswd ]

then

mysqldump -u $DBUser --opt $DBName > $DumpFile

else

mysqldump -u $DBUser -p$DBPasswd --opt $DBName > $DumpFile

fi

tar czvf $NewFile $DumpFile >> $LogFile 2>&1

echo "[$NewFile]Backup Success!" >> $LogFile

rm -rf $DumpFile

;;

mysqlhotcopy)

rm -rf $DumpFile

mkdir $DumpFile

if [ -z $DBPasswd ]

then

mysqlhotcopy -u $DBUser $DBName $DumpFile >> $LogFile 2>&1

else

mysqlhotcopy -u $DBUser -p $DBPasswd $DBName $DumpFile >>$LogFile 2>&1

fi

tar czvf $NewFile $DumpFile >> $LogFile 2>&1

echo "[$NewFile]Backup Success!" >> $LogFile

rm -rf $DumpFile

;;

*)

#/etc/init.d/mysqld stop >/dev/null 2>&1

#tar czvf $NewFile $DBPath$DBName >> $LogFile 2>&1

#/etc/init.d/mysqld start >/dev/null 2>&1

#echo "[$NewFile]Backup Success!" >> $LogFile

;;

esac

fi

echo "-------------------------------------------" >> $LogFile