Domoticz Raspberry pi SD card Back up

#!/bin/bash
NAS_IP="192.168.1.xx"
NAS_MAC="xx:xx:xx:xx:xx:xx"
username="user"
password="pass"
workgroup="WORKGROUP"
PATH_to_NAS='Stockage\ RAID/Sauvegarde/'
PATH_to_pi="/home/pi/NAS/"
LOCAL_TMP_PATH="/usbkey/tmp/"
USBPATH="/usbkey/"
TIMESTAMP=`date +%Y%m%d`

function LogToDomoticz { # Usage is LogToDomoticz "Text"
    message="<font color=\"Black\"><b>[Save]</b> ${1}</font>"
    curl -Gs 'http://192.168.1.18:8080/json.htm' --data-urlencode "type=command" --data-urlencode "param=addlogmessage" --data-urlencode "message=${0##*/} ${message}" --max-time 15 &>/dev/null &
}


# Basic checks

[[ "$(id -u)" != "0" ]] && echo "$(date +%Y-%m-%d\ %H:%M:%S) This script must be run as root" 1>&2 && exit 1
[[ -z $(which wakeonlan) ]] && echo "wakeonlan is required, consider running \"apt-get install wakeonlan\"" 1>&2 && exit 1
[[ -z $(which gzip) ]] && echo "gzip is required, consider running \"apt-get install gzip\"" 1>&2 && exit 1
[[ ! -d $PATH_to_pi ]] && echo "$(date +%Y-%m-%d\ %H:%M:%S) $PATH_to_pi doesn't exit, creating it ..." && mkdir $PATH_to_pi

LogToDomoticz "Démarrage de la sauvegarde, extinction de Domoticz"

echo "$(date +%Y-%m-%d\ %H:%M:%S) Stopping Domoticz service"

service domoticz.sh stop

echo "$(date +%Y-%m-%d\ %H:%M:%S) Starting copy"
timeexecSD=`(time dd if=/dev/mmcblk0 of=${LOCAL_TMP_PATH}SDCardBackup-$TIMESTAMP.img) 2>&1 | grep real`

echo "$(date +%Y-%m-%d\ %H:%M:%S) SD Back-up duration: ${timeexecSD:5}"
timeexecDB=`(time tar zcf ${LOCAL_TMP_PATH}Domoticz-$TIMESTAMP.tar.gz /home/pi --exclude /home/pi/NAS) 2>&1 | grep real`
echo "$(date +%Y-%m-%d\ %H:%M:%S) /home/pi Back-up duration: ${timeexecDB:5}"

echo "$(date +%Y-%m-%d\ %H:%M:%S) Copy is over ! Restarting Domoticz"
service domoticz.sh start

sleep 20
LogToDomoticz "Fin de la sauvegarde SD en ${timeexecSD:5} et de la Database en ${timeexecDB:5}, lancement de la compression"

cp -f ${LOCAL_TMP_PATH}SDCardBackup-$TIMESTAMP.img ${USBPATH}SDCardBackup-last.img
timeexecZIP=`(time gzip -1 ${LOCAL_TMP_PATH}SDCardBackup-$TIMESTAMP.img) 2>&1 | grep real`
echo "$(date +%Y-%m-%d\ %H:%M:%S) ZIP compression duration: ${timeexecZIP:5}"
LogToDomoticz "Compression effectuée en ${timeexecZIP:5}"

ping -q -c1 -w1 $NAS_IP &>/dev/null
if  [ ! $? -eq 0 ]; then
    wakeonlan $NAS_MAC
    echo "$(date +%Y-%m-%d\ %H:%M:%S) NAS wake-up in progress, waiting 20s"
    sleep 20
fi

# Mount remote directory

mount -t cifs -o username=$username,password=$password,workgroup=$workgroup,rw,iocharset=utf8,file_mode=0777,dir_mode=0777 //$NAS_IP/Stockage\ RAID/Sauvegarde/ $PATH_to_pi
sleep 1

# Check it is OK start copy

if  [ -d ${PATH_to_pi}Domoticz-SD ]; then
    cp ${LOCAL_TMP_PATH}Domoticz-$TIMESTAMP.tar.gz ${PATH_to_pi}Domoticz-db/
    cp ${LOCAL_TMP_PATH}SDCardBackup-$TIMESTAMP.img.gz ${PATH_to_pi}Domoticz-SD/

    # Remove old backup files

    count="0"
    for i in `ls -t ${PATH_to_pi}Domoticz-SD`; do
        [[ count -gt 9 ]] && rm ${PATH_to_pi}Domoticz-SD/$i
        count=`expr $count + 1`
    done

    count="0"
    for i in `ls -t ${PATH_to_pi}Domoticz-db`; do
        [[ count -gt 19 ]] && rm ${PATH_to_pi}Domoticz-db/$i
        count=`expr $count + 1`
    done

    # Umount directory
    umount $PATH_to_pi
    rm ${LOCAL_TMP_PATH}*
    echo "$(date +%Y-%m-%d\ %H:%M:%S) Copy to NAS successfully achieved"
    LogToDomoticz "Succès de la sauvegarde sur le NAS"
else
    echo "$(date +%Y-%m-%d\ %H:%M:%S) Copy to NAS failed"
    LogToDomoticz "Erreur de la sauvegarde, pas de copie sur le réseau"
fi

exit 0