Hey Mike, thanks for the awesome tutorial. Just wanted to let you know that I had some trouble downloading the shapefile on my Macbook. I got the following error:
alex:~/blocks/choropleth$ curl ‘http://www2.census.gov/geo/tiger/GENZ2014/shp/cb_2014_06_tract_500k.zip' -o cb_2014_06_tract_500k.zip
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 — : — : — — : — : — — : — : — 0
alex:~/blocks/choropleth$ unzip -o cb_2014_06_tract_500k.zip
Archive: cb_2014_06_tract_500k.zip
End-of-central-directory signature not found. Either this file is not
a zipfile, or it constitutes one disk of a multi-part archive. In the
latter case the central directory and zipfile comment will be found on
the last disk(s) of this archive.
unzip: cannot find zipfile directory in one of cb_2014_06_tract_500k.zip or
cb_2014_06_tract_500k.zip.zip, and cannot find cb_2014_06_tract_500k.zip.ZIP, period.
My workaround was to simply download the zip file using the browser instead of using curl.
