Wordpress Backup bash script

wp-backup.sh

#!/bin/bash

NOW=$(date +"%Y-%m-%d-%H%M")

DB_USER=""
DB_PASS=""
DB_NAME=""
DB_HOST=""

TREE_FILE="$NOW.tar.gz"
DB_FILE="$DB_NAME.$NOW.sql.tar.gz"

BACKUP_DIR="$NOW"
WWW_DIR=""

mkdir -p $BACKUP_DIR
tar -czvf $BACKUP_DIR/$TREE_FILE $WWW_DIR

mysqldump -h$DB_HOST -u$DB_USER -p$DB_PASS $DB_NAME > /tmp/$DB_NAME
tar -czvf $BACKUP_DIR/$DB_FILE /tmp/$DB_NAME
rm /tmp/$DB_NAME