[mrtg] External script produces no graphs

[Eric Brander]

On Wed, Jul 9, 2008 at 9:15 AM,  <lazna at volny.cz> wrote:
> I have temperature meter connected on serial port. Special software read
> temperature every minute a write it into a file. I have created batch
> which take temperature value, crop unwanted text around the value, than
> write value (plain number) into text file and print out content of this
> file into four lines as output. Than I put path to this script as target
> into MRTG cfg file. The mrtg start as usual (without any error messages),
> but day picture does not contain any data. I let it run for two hours
> as daemon, but nothing. Any ideas???
>

Are you using the GAUGE option? Post the relevant portions of your
config file so we can make sure all is well.

Regards,

Eric Brander