Mysql自動備份指令碼

http://www.51cto.com/html/2005/1028/9851.htm

可以將這個指令碼放進crontab，每天淩晨執行一次，自動備份 這個指令碼每天最多隻執行一次，而且只保留最近五天的備份在伺服器上。

#!/bin/bash #This is a ShellScript For Auto DB Backup #Powered by aspbiz #2004-09 #Setting #設定資料庫名，資料庫登入名稱，密碼，備份路徑，日誌路徑，資料檔案位置，#以及備份方式 #預設情況下備份方式是tar，還可以是mysqldump,mysqldotcopy #預設情況下，用root(空)登入mysql資料庫，備份至/root/dbxxxxx.tgz 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 $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