Mysql自动备份脚本

#!/bin/bash
#ThisisaShellScriptForAutoDBBackup
#PoweredbySearchDatabase
#2005-09

#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
#SettingEnd

NewFile="$BackupPath"db$(date+%y%m%d).tgz
DumpFile="$BackupPath"db$(date+%y%m%d)
OldFile="$BackupPath"db$(date+%y%m%d--date='5daysago').tgz

echo"-------------------------------------------">>$LogFile
echo$(date+"%y-%m-%d%H:%M:%S")>>$LogFile
echo"--------------------------">>$LogFile
#DeleteOldFile
if[-f$OldFile]
then
rm-f$OldFile>>$LogFile2>&1
echo"[$OldFile]DeleteOldFileSuccess!">>$LogFile
else
echo"[$OldFile]NoOldBackupFile!">>$LogFile
fi

if[-f$NewFile]
then
echo"[$NewFile]TheBackupFileisexists,Can'tBackup!">>$LogFile
else
case$BackupMethodin
mysqldump)
if[-z$DBPasswd]
then
mysqldump-u$DBUser--opt$DBName>$DumpFile
else
mysqldump-u$DBUser-p$DBPasswd--opt$DBName>$DumpFile
fi
tarczvf$NewFile$DumpFile>>$LogFile2>&1
echo"[$NewFile]BackupSuccess!">>$LogFile
rm-rf$DumpFile
;;
mysqlhotcopy)
rm-rf$DumpFile
mkdir$DumpFile
if[-z$DBPasswd]
then
mysqlhotcopy-u$DBUser$DBName$DumpFile>>$LogFile2>&1
else
mysqlhotcopy-u$DBUser-p$DBPasswd$DBName$DumpFile>>$LogFile2>&1
fi
tarczvf$NewFile$DumpFile>>$LogFile2>&1
echo"[$NewFile]BackupSuccess!">>$LogFile
rm-rf$DumpFile
;;
*)
/etc/init.d/mysqldstop>/dev/null2>&1
tarczvf$NewFile$DBPath$DBName>>$LogFile2>&1
/etc/init.d/mysqldstart>/dev/null2>&1
echo"[$NewFile]BackupSuccess!">>$LogFile
;;
esac
fi

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