[rrd-users] Re: How do I get the current time in the graph

[Tobias Oetiker]

Today Rob Tanner wrote:

> Hi,
>
> I would like to put a timestamp in the graph so we know at what time the
> graph was created.  I have looked through the docs and tried to play
> with the TIME and LTIME rpn values, but have not been successful at
> setting a variable with the value of the current time.  Does anyone have
> an example of of setting a variable with the time of day?

this is normally done externally by executing some command that
returns the time in a sensible format and then you just add this to
a graph using the COMMENT command ... note that you have to
backslash escape all instances of : in the time string ...

in perl you could do:

my $date = localtime(time);
$date =~ s/:/\\:/g;
......
COMMENT:$date

cheers
tobi

> Thanks.
>
>

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