一个Mysql自动备份脚本

来源：互联网发布：自动作曲编曲软件编辑：程序博客网时间：2024/06/04 05:25

#!/bin/bash
#This is a ShellScript For Auto DB Backup
#Powered by aspbiz
#2004-09

#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/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