bash tiger code working now

make_TIGER_S1200_2018_roads.sh

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+# download
+wget -r ftp://ftp2.census.gov/geo/tiger/TIGER2018/ROADS/*
+
+# unzip files
+mkdir ./all_2018_roads
+find ftp2.census.gov -type f -name "*.zip" -print0 | xargs -0 -I{} unzip {} -d ./all_2018_roads
+
+
+# subset all of the shapefiles to each of the road classes
+mkdir ./TIGER2018_S1200_roads
+
+# if ls is aliased to `ls --color` than ansi color strings will be returned, preventing the grep from working!
+for f in `\ls all_2018_roads/ | grep .shp$`; do
+    ogr2ogr -where "MTFCC = 'S1200'" TIGER2018_S1200_roads/$f all_2018_roads/$f
+done
+
+# merge all of these together
+# utility taken from the python-gdal package
+ogrmerge.py -o all_TIGER_roads_2018.gpkg TIGER2018_S1200_roads/*.shp -progress -f GPKG
+
+# cleanup
+rm -r ftp2.census.gov
+rm -r all_2018_roads
+rm -r TIGER2018_S1200_roads
+