[rrd-users] Whats wrong with my little script? Graphic stays emtpy

[Mario Ohnewald]

Hello!
My Graphic keeps beeing empty. This is my script:

---------------------------

rrdtool create test.rrd --start 920804400 DS:speed:COUNTER:600:U:U
RRA:AVERAGE:0.5:1:24 RRA:AVERAGE:0.5:6:10

## Start Var
var=920804410

# Go, do loop.
while [ "lala" != "bubu" ]
        do
# get value from file. Vale starts at 100 and increases 1 every 5 sec.
value=`cat value.sh`

# Plus 5 secs
var=$[$var+5]

# Debug output
echo "var=" $var
echo "value=" $value

# update database
 rrdtool update test.rrd $var:$value
# rrdtool update test.rrd 920805600:123 920805900:12363 920806200:122
# rrdtool update test.rrd 920806500:121 920806800:12393 920807100:123
# rrdtool update test.rrd 920807400:124 920807700:12411 920808000:124


# do some magic ;)
## 920804500-920804400 = 100sec
## This should show my graphic in a 100sec window, cause the values get
updated every 5 secs.
rrdtool graph speed.gif --start 920804400 --end 920804510 --vertical-label
m/s \
DEF:myspeed=test.rrd:speed:AVERAGE
LINE2:myspeed#0000FF


sleep 5
done

---------------------------

Thanks a lot!

Mario Ohnewald

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