Converting a single shapefile with multiple features into independent GeoJSON files using ogr2ogr

Question

Let's say there's a single shapefile that contains multiple features. Most of which are polygons.

How can one convert those features into separate independent GeoJSON files?

Can this be done with ogr2ogr?

Answer 1

TL;DR

bash /path/to/shp2geojson.sh /path/to/input.shp /path/to/output-dir

shp2geojson.sh

#!/bin/bash
clear;

layername=$(ogrinfo -nogeomtype "$1" | grep "1:" | awk '{print $2}')
count=$(ogrinfo -so -ro "$1" "$layername" | grep "Feature Count:" | awk '{print $3}')

if [ -d $2 ]; then
    echo "The directory $2 is now ready."
else
    mkdir "$2"
    echo "The directory $2 has just been created and now ready."
fi

for (( i=0; i<$count; i++ )); do
   echo "Processing feature #$i..."
   ogr2ogr -f GeoJSON -t_srs EPSG:4326 -fid "$i" "$2/$i.geojson" "$1"
done

This bash script works for Mac and Linux machines. I do not know how to do it in batch script for Windows.

Alternatively

If one wants to use a certain column from the attribute table (instead of the feature index) for the naming of the GeoJSON files, I have made a derivative solution similar to the above script.