#!/bin/bash
COLLECTION=sepia
INTERVAL=90

DIRS=$(cat <<LIST
/host/root/media/data/Inverter
/host/root/media/data/Monique
/host/root/media/data/Music
/host/root/media/data/Peter
/host/root/media/data/Photographs
/host/root/media/data/Raw
/host/root/media/data/Sanne
/host/root/media/data/Wii
LIST
)

while :; do
    SECONDS=0    
    for DIR in $DIRS; do
        SIZE=$(du -cs $DIR | tail -1 | awk '{print $1}')
        NAME=$(echo $DIR | sed 's/.//' | tr / - )
        echo "PUTVAL $COLLECTION/exec-du-$NAME/gauge-size interval=$INTERVAL N:$SIZE"
    done
    sleep $((INTERVAL-$SECONDS))
done