On Fri, Nov 22, 2013 at 08:45:14AM -0800, Aron Ahmadia wrote:
> > +	ipython nbconvert --stdout $< > $@
> 
> try replacing this line with: `ipython nbconvert $<` (this dumps to
> HTML with the right file name by default).

And you should probably quote those variables, because someone's bound
to add filenames with shell-sensitive characters eventually:

    ipython nbconvert "$<"