[rrd-users] on-the-fly graph generation

[Simon Hobson]

I wrote:

>In effect, I need to do something like :
>
>rrdtool graph <file> `cat ${Tempfile}`
>
>which doesn't work - and I'm sure this will be something trivial !

And it was something trivial :-/

   eval "rrdtool graph ${GraphDef}"

does the trick. I've modified my script to build the graphing 
parameters up in a variable rather than use a file on disk.