计划任务实现定时备份mysql数据库

1.linux平台

30 3 * * * sh /data/tools/mysqlbackup.sh  每天3点半备份数据库
mysqlbackup.sh(备份最近5天的数据):

 #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/root/dbxxxxx.tgz 

 DBName="test"
 DBUser="root"
 DBPasswd=""
 BackupPath="/data/mysql_backup/"
 LogFile="/data/mysql_backup/db.log"
 #DBPath="/opt/lamp/mysql/"
 BackupMethod="mysqldump"
 BackupMethodPath="/opt/lamp/bin/mysqldump"

 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 >> $LogFile >&
    echo "[$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 $DBPasswd ]
       then
         echo "$BackupMethodPath -u $DBUser --opt $DBName > $DumpFile"
         $BackupMethodPath -u $DBUser --opt $DBName > $DumpFile
       else
         echo "$BackupMethodPath -u $DBUser -p$DBPasswd --opt $DBName"
         $BackupMethodPath -u $DBUser -p$DBPasswd --opt $DBName > $DumpFile
       fi
       tar -czvf $NewFile $DumpFile >> $LogFile >&
       echo "[$NewFile]Backup Success!" >> $LogFile
       rm -rf $DumpFile
       ;;
    mysqlhotcopy)
       rm -rf $DumpFile
       mkdir $DumpFile
       if [ -z $DBPasswd ]
       then
          mysqlhotcopy -u $DBUser $DBName $DumpFile >> $LogFile >&
       else
          mysqlhotcopy -u $DBUser -p $DBPasswd $DBName $DumpFile >>$LogFile >&
       fi
       tar czvf $NewFile $DumpFile >> $LogFile >&
       echo "[$NewFile]Backup Success!" >> $LogFile
       rm -rf $DumpFile
       ;;
    esac
 fi

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

2.windows平台

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