I'm trying to create a geojson file with a few shapes of roads from OSM. Now, I've been able to get shapefiles of the greater region (province) these roads are in from http://download.geofabrik.de/ . I've also been able to convert a shape file to geojson using ogr2ogr. My problem is that it contains way too much data. Is there a way to filter a shapefile or geojson file by name, type or ID?