mysql 远程自动备份脚本

#!/bin/bash

#the script is backup all databases for mysql server，first grant all on *.* to adminbak@'172.16.2.222' identified by "backup";

#Setting  

DBHost=172.16.2.218

DBUser=adminbak 

DBPasswd=backup

BackupPath=/backup/mysqlbak/ 

LogFile=/backup/mysqlbak/db.log 

NewFile="$BackupPath"db$(date +%y%m%d).sql.tar.gz

DumpFile="$BackupPath"db$(date +%y%m%d) 

OldFile="$BackupPath"db$(date +%y%m%d --date='3 days ago').sql.tar.gz 

echo "-------------------------start backup---------------------" >> $LogFile 

echo "start time is $(date +"%y-%m-%d %H:%M:%S")" >> $LogFile 

#Delete Old File 

if [ -f $OldFile ] 

then 

   rm -f $OldFile >> $LogFile

   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 

      mysqldump  -h$DBHost -u$DBUser -p$DBPasswd --all-databases > $DumpFile 

      tar czvf $NewFile $DumpFile >/dev/null 2>&1  

      echo "[$NewFile]Backup Success!" >> $LogFile 

      rm -rf $DumpFile 

fi 

echo "end  time is $(date +"%y-%m-%d %H:%M:%S")" >> $LogFile 

echo "--------------------------end backup----------------------" >> $LogFile