On Sat, Jul 02, 2016 at 01:33:23PM +0200, Tim Rühsen wrote:
> (Bash me for suggesting to use wget ;-))
>
> $ wget -N http-url
>
> only downloads the file if the timestamp changed.
> So there is not much data traffic in the case when the server hasn't a new
> one.
>
> I would run this every X minutes and compare the file date before and after
> 'wget ...'. If it changed, you know there has been new data arrived.
>
> But maybe there is a similar curl option that I am not aware off.

Like --time-cond?

>>> Dan

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