#!/bin/sh
r.mask -r

(
echo "cells"
g.region rast=fdr_conus -a
r.stats -cn fdr_conus | awk '{cells+=$2}END{printf "%d\n", cells}'
) > fdr_conus.cells

(
echo "cells"
g.region rast=ned_1_conus_clean -a
r.stats -cn ned_1_conus_clean | awk '{cells+=$2}END{printf "%d\n", cells}'
) > ned_1_conus_clean.cells