diff --git a/duply-backup-lenny.sh b/duply-backup-lenny.sh
index 01fdae6..d724f6b 100755
--- a/duply-backup-lenny.sh
+++ b/duply-backup-lenny.sh
@@ -2,18 +2,19 @@
 
 ping -c2 tumor.chaos 1>/dev/null || exit 0
 
+CMD=$@
 LOGDIR=/var/log/backup
 DIR=/etc/duply
 
 [[ -d $LOGDIR ]] || mkdir -p $LOGDIR
 XUSER=$(who |grep :0 |cut -f 1 -d ' ')
 XUID=$(id -u ${XUSER})
-NOTIFYCMD="sudo -u ${XUSER} DISPLAY=:0 DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/${XUID}/dbus /usr/bin/notify-send -c Backup -a duply"
+NOTIFYCMD="su - ${XUSER} DISPLAY=:0 DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/${XUID}/bus /usr/bin/notify-send -c Backup -a duply"
 
 for I in ${DIR}/lenny*; do 
     BCKP=$(basename $I)
     ${NOTIFYCMD} ${BCKP} "Starting Backup..."
-    /usr/bin/duply $BCKP pre_incr_post 2&>1 >${LOGDIR}/${BCKP}.log; 
+    /usr/bin/duply $BCKP ${CMD} 2&>1 >${LOGDIR}/${BCKP}.log; 
     FIN=$?
     if [ $FIN -eq 0 ]; then
     	${NOTIFYCMD} --icon=sync-synchronizing ${BCKP} "Backup success."
diff --git a/mqtt/remove_retained_topic.sh b/mqtt/remove_retained_topic.sh
new file mode 100755
index 0000000..ebba51c
--- /dev/null
+++ b/mqtt/remove_retained_topic.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+echo "cleaning " $1 " :: usage: cleanmqtt <host> <topic>"
+mosquitto_sub -h $1 -t "${2}/#" -v | while read line; do mosquitto_pub -h $1 -t "${line% *}" -r -n; done