Backup script to use with monit monitoring system: https://lane6.de/posts/update-duply-backup-script-with-logging-and-autonomous-monitoring

backup.sh

#! /bin/bash
#
#   Simple backup script for jottacloud and owncloud/git.
#   Created by Georg Peters (https://lane6.de)
#   Version 1.1
#   Previous version at: https://lane6.de/posts/how-to-setup-a-simple-online-backup-with-duply-and-owncloud
#	Use: ./backup.sh owncloud

# Check if backup if running
if [[ -f /tmp/backup.running ]]; then
    echo "Error: Backup running"
    # Optional, send E-Mail: echo "Backup $1 am `date +"%d%m%Y"`" | mailx -s "BACKUP: Error running backup!" $EMAIL_TO
exit
fi

#
# Global Settings
#

export JOTTACLOUD_USERNAME=""
export JOTTACLOUD_PASSWORD=""
EMAIL_TO="receiver@email.tld"
MYSQL_USER="root"
MYSQL_PASSWD="mysql password"
TODAY=$(date +%d%m%Y)

# Create backup dir
if [ ! -d /var/log/backup ];then
    mkdir -p /var/log/backup
fi

# Trace function for logging, don't change this
trace () {
	stamp=`date +%Y-%m-%d_%H:%M:%S`
        echo "$stamp: $*" >> ${DAILYLOGFILE}
}


case $1 in

"error")
    # This will send a report to my email address (triggered from monit monitoring system)
    # Use: backup.sh error duplyProfile NiceProfileName Your.Mail@host.tld
	PROFILE=$2
	PROFILENAME=$3
	EMAIL=$4
	/usr/bin/duply /root/.duply/$PROFILE status 2>&1 > /tmp/status.${PROFILE}.${TODAY}.log
	/usr/bin/zip -j /tmp/logfiles_${PROFILE}_${TODAY}.zip /tmp/status.${PROFILE}.${TODAY}.log /var/log/backup/${PROFILE}.daily.log /var/log/backup/${PROFILE}.log
	echo "The backup for ${PROFILENAME} failed at ${TODAY}" | mutt -a "/tmp/logfiles_${PROFILE}_${TODAY}.zip" -s "[BACKUP] ${PROFILENAME} backup failed" -- $EMAIL
	rm -rf /tmp/logfiles_${PROFILE}_${TODAY}.zip
	;;



"owncloud")

        #
        # Settings
        #

        SOURCE_FOLDER="/path/to/owncloud"
        MYSQL_ARG="--all-databases" # Backup all the databases
        PROFILE="jotta"
        # Only change if you have to..
        DUPLY_CMD="/root/.duply/${PROFILE} backup"
        DUPLY_STATUS="/root/.duply/${PROFILE} status"
    	LOGFILE="/var/log/backup/${PROFILE}.log"
    	DAILYLOGFILE="/var/log/backup/${PROFILE}.daily.log"
        #
        # Start script
        #

        # Create log if not exists
    	if [ ! -f $LOGFILE ]; then
      		touch $LOGFILE
    	fi

        # Create daily log if not exists
    	if [ ! -f $DAILYLOGFILE ]; then
                    touch $DAILYLOGFILE
        fi

    	# Clear the old daily log file
       	cat /dev/null > ${DAILYLOGFILE}
        # Let only one backup run at a time
        touch /tmp/backup.running
        cd /tmp
    	trace "Backup for owncloud started"
        trace "Creating mysql dump"
        mysqldump -h127.0.0.1 -u $MYSQL_USER -p${MYSQL_PASSWD} $MYSQL_ARG > ${SOURCE_FOLDER}/sqlbkp_`date +"%Y%m%d"`.bak 2>> ${DAILYLOGFILE}
        trace "mysql dump finished"
        trace "Starting backup.."
    	/usr/bin/duply $DUPLY_CMD >> $DAILYLOGFILE 2>&1
    	BACKUPSTATUS=`cat "$DAILYLOGFILE" | grep Errors | awk '{ print $2 }'`
    	if [ "$BACKUPSTATUS" != "0" ]; then
            # 'Error' is the trigger word for my monit monitoring solution
    		trace "Backup ERROR - failed to create backup"
    	else
    		trace "Backup complete - no errors"
        fi
    	trace "------------------------------------"
    	# Add daily log to logfile
    	cat "$DAILYLOGFILE" >> $LOGFILE
        # Clean up!
        rm -rf ${SOURCE_FOLDER}/sqlbkp_`date +"%Y%m%d"`.bak

        ;;
*)
        echo "no match"
        ;;
esac

rm -f /tmp/backup.running
unset JOTTACLOUD_USERNAME
unset JOTTACLOUD_PASSWORD