backupPi.sh

#!/bin/sh
# Script to backup the SD card of a Pi to the nas.
backupLocation="/dev/athena/backup/openhabpi/"

backupName="$(date +%Y%m%d%H%S).img"

sudo dd if=/dev/mmcblk0 | sudo gzip > $backupLocation$backupName.gz

result=$?

if [ $result=0 ];
        then
                ls -d -1tr $backupLocation*.img.gz | head -n -3 | xargs -d '\n' rm;
                exit 0;
fi;

if [ $result=1 ]; then curl -F "AuthorizationToken=xxx" -F "Body=Backup of openhabpi failed" https://pushalot.com/api/sendmessage; exit 0; fi;

ls -d -1tr $backupLocation*.img.gz | head -n -3 | xargs -d '\n' echo