The IPython Notebook has two different keyboard input modes. Edit mode allows you to type code/text into a cell and is indicated by a green cell border. Command mode binds the keyboard to notebook level actions and is indicated by a grey cell border.
| # Some GEO oneliners that make my life easier. | |
| # Dissolve Shapefiles using OGR from an attribute table | |
| # http://darrencope.com/2015/01/23/dissolve-shapefiles-using-ogr/ | |
| ogr2ogr outputfile.shp inputfile.shp \ | |
| -dialect sqlite -sql “SELECT dissolvefield,ST_Union(geometry) \ | |
| as geometry FROM inputfile GROUP BY dissolvefield” | |
| # Dissolve everything http://gis.stackexchange.com/questions/79850/merge-large-number-of-polygons-using-qgis | |
| ogr2ogr -dialect SQLITE -sql "SELECT ST_Union(geometry) FROM input" output.shp input.shp |