<div dir="ltr">You could also "tail" the file while it's being created and generate the data insertions in real time </div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Jan 22, 2014 at 9:08 AM, Simon Hobson <span dir="ltr"><<a href="mailto:linux@thehobsons.co.uk" target="_blank">linux@thehobsons.co.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">franky <<a href="mailto:ffuino@gmail.com">ffuino@gmail.com</a>> wrote:<br>
<br>
> graph:<br>
> rrdtool graph 'graph.png' --width '400' --height '100'<br>
> 'DEF:T634=filename.rrd:t634:AVERAGE' 'LINE1:T634#0000FF:T634'<br>
<br>
</div>You could try specifying start and end times.<br>
<div class="HOEnZb"><div class="h5"><br>
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