Mysql backup script

#!/bin/bash

HOSTNAME="localhost"

PORT="3326"

USERNAME="root"

PASSWD="123456"

BACKDIR=/back/mysql

dateDIR=`date +"%Y-%y-%m-%d"`

OUTPUT=MysqlBackUp-$dateDIR.tar.gz

test -e $BACKDIR/$OUTPUT

if [ $? -ne 0  ]; then

mkdir -p  $BACKDIR/$dateDIR > /dev/null

for i in `mysql -u$USERNAME -p$PASSWD -e "show databases" | grep -v "Database" | grep -v "information_schema" `

do 

   mysqldump -u$USERNAME -p$PASSWD --opt $i | gzip > $BACKDIR/$dateDIR/${i}_${dateDIR}.sql.gz > /dev/null 

   tar -zcvPf  $BACKDIR/$OUTPUT  $BACKDIR/$dateDIR >/dev/null

done

echo "###################LOG###########################" >>/var/log/messages

echo "$OUTPUT is backup !!!!!!!!"                      >>/var/log/messages

echo "###################LOG########################" >>/var/log/messages

 rm -rf $BACKDIR/$dateDIR

 

else 

 

     echo "$OUTPUT backup is exist !!!!!"

fi

find $BACKDIR -mtime +4 -exec rm -rf {} \;