实现Lunix环境下MySQL数据库的自动备份 |
时间: 2008-09-29 信息来源: 赛迪网 作者: Kerr 点击数:
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内容提示：一个简单的脚本实现数据库自动备份 |
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 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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