QGIS » QGIS Application

The "merge shapefiles" tool is very inefficient, when applied to hundreds/thousands of shapes the progress bar barely moves for many hours on a very powerful machine.

I discovered this python code

http://furiousgis.blogspot.it/2012/05/python-shapefile-merger-utility.html

that does the task in a matter of seconds even for many GB worth of shapefiles.

Its speed is equal, if not faster to an ogr2ogr script


#!/bin/bash/
DATA=`find . -name '*.shp'`
ogr2ogr -a_srs EPSG:4326 merge.shp
for i in $DATA
do
ogr2ogr -append -update merge.shp $i -f "Esri Shapefile"
done