ogrmerge.py

Merge several vector datasets into a single one.

TLDR

Create a GeoPackage with a layer for each input Shapefile

$ ogrmerge.py -f [GPKG] -o [path/to/output.gpkg] [path/to/input1.shp path/to/input2.shp ...]

Create a virtual datasource (VRT) with a layer for each input GeoJSON

$ ogrmerge.py -f [VRT] -o [path/to/output.vrt] [path/to/input1.geojson path/to/input2.geojson ...]

Concatenate two vector datasets and store source name of dataset in attribute 'source_name'

$ ogrmerge.py -single -f [GeoJSON] -o [path/to/output.geojson] -src_layer_field_name country [source_name] [path/to/input1.shp path/to/input2.shp ...]