Spatially index (*.qix) all shapefiles in a folder (and sub-folders)

pushd D:\<folder>

for /R %%f in (*.shp) do ogrinfo -sql “create spatial index on %%~nf” “%%f”

Point the function at the correct folder. Loop recursively through the folder/sub-folder structure looking for shapefiles then undertake an ogrinfo SQL command on each file. %%nf provides the file name and %%f provides the full path to the file. Double ‘%%’ is required when the commands are run from a batch file, otherwise single ‘%’ will do.