Lunix环境下MySQL数据库的自动备份脚本

  • 来源: 赛迪网 作者: lixiangjing   2008-07-04/15:28
  • 可以将这个脚本放进crontab,每天凌晨执行一次,自动备份

     

    这个脚本每天最多只执行一次,而且只保留最近五天的备份在服务器上。

     

    #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,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/root/dbxxxxx.tgz

     

    #!/bin/bash

     

    #This is a ShellScript For Auto DB Backup

     

    #Powered by aspbiz

     

    #Setting

     

    DBName=mysql

     

    DBUser=root

     

    DBPasswd=

     

    BackupPath=/root/

     

    LogFile=/root/db.log

     

    DBPath=/var/lib/mysql/

     

    #BackupMethod=mysqldump

     

    #BackupMethod=mysqlhotcopy

     

    #BackupMethod=tar

     

    #Setting End

     

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

     

    DumpFile="$BackupPath"db$(date +%y%m%d)

     

    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 $DBName1 > $DumpFile

     

    fif

     

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

     

    echo "[$NewFile]Backup Success!" >> $LogFile #p#分页标题#e#

     

    rm -rf $DumpFile

     

    ;;

     

    mysqlhotcopy)

     

    rm -rf $DumpFile

     

    mkdir $DumpFile

     

    if [ -z $DBPasswwd ]

     

    then

     

    mysqlhotceopy -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>&

     

    echo "[$NewFile]Backup Success!" >> $Log1File

     

    rm -rf $DumpFile

     

    ;;

     

    *)

     

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

     

    tar czvf $NewFile $DBPath$DBName >> $LogFlile 2>&1

     

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

     

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

     

    ;;

     

    esac

     

    fi

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


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