多功能Mysql数据库自动备份shell脚本

`#!/bin/bash

#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mysqldump+gzip，还可以是tar,mysqldotcopy

#默认情况下，用root(空)登录mysql数据库，备份至/root/数据库名xxxxx.gz
DBName=mysql
DBUser=root
DBPasswd=
BackupPath=/root/
LogFile=/root/mysqlbak.log
DBPath=/var/lib/mysql/
BackupMethod=mysqldump

#BackupMethod=mysqlhotcopy

#BackupMethod=tar

#Setting End

NewFile=”$BackupPath$DBName”$(date +%y%m%d).gz
DumpFile=”$BackupPath$DBName”$(date +%y%m%d)
OldFile=”$BackupPath$DBName”$(date +%y%m%d –date=’5 days ago’).gz

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
/usr/local/mysql/bin/mysqldump -u $DBUser –opt $DBName | gzip > $NewFile
else
/usr/local/mysql/bin/mysqldump -u $DBUser -p$DBPasswd –opt $DBName | gzip > $NewFile
fi
echo “[$NewFile]Backup Success!” » $LogFile
;;
mysqlhotcopy)
rm -rf $DumpFile
mkdir $DumpFile
if [ -z $DBPasswd ]
then
/usr/local/mysql/bin/mysqlhotcopy -u $DBUser $DBName $DumpFile » $LogFile 2>&1
else
/usr/local/mysql/bin/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`