wordpress site backup script

#!/bin/bash

# usage: ./backup.sh domain.com

#Config
BACKUPPATH="/home/backup"; # store backups here
HOSTPATH="/home"; # path where hosted domains are

# set database settings.
DBUSER="root"
DBPASS="root"
DBHOST="localhost"
DBNAME="lol"


backupcodeanddatabase () {
    local _N _U _P _H FS FT TD WP;
    FT=`date +$3/$2-%Y-%m-%d.tar.gz`;
    FS=`date +$3/$2-%Y-%m-%d.sql`;
    TD=$1/$2;

    WP=$TD/wp-config.php;

    ( cd $TD || {
        echo "bad $TD" && return 2
    };

    if [ -f $WP ]; then
        eval $(sed -n "s/^d[^D]*DB_\([NUPH]\)[ASO].*',[^']*'\([^']*\)'.*/_\1='\2'/p" $WP);
        mysqldump -u$_U -p$_P -h$_H $_N > $FS;
    else
        _N=$DBNAME
        _U=$DBUSER
        _P=$DBPASS
        _H=$DBHOST
        mysqldump -u$_U -p$_P -h$_H $_N > $FS;
    fi

    tar -czPf $FT $TD )
}

dobackup () {
    NOW=$(date +"%Y-%m-%d-%H:%M");
    BACKUPDOMAIN="$BACKUPPATH/$DOMAIN";

    if [ ! -d $BACKUPDOMAIN ]; then
        mkdir $BACKUPDOMAIN
    fi

    BACKUP="$BACKUPDOMAIN/$NOW";

    if [ ! -d $BACKUP ]; then
        mkdir $BACKUP
    fi
   
    if [ -d "$HOSTPATH/$DOMAIN/" ]; then
        backupcodeanddatabase $HOSTPATH $DOMAIN $BACKUP
    else
        echo "directory not found: $HOSTPATH/$DOMAIN/" 
    fi
}

if [ -z "$1" ]; then
    I=0;
    for DIR in $(find $HOSTPATH -maxdepth 1 -type d)
    do
        DOMAIN=$(basename $DIR)

        if [ $I -ne 0 ]; then
            #echo $DOMAIN
            dobackup

        fi
        I=$((I+1))
    done
    exit 0
else
    DOMAIN="$1";
    dobackup
    exit 0 
fi