marlin/buildroot/bin/restore_configs

#!/usr/bin/env bash

RESTORE="https://raw.githubusercontent.com/MarlinFirmware/Configurations/master/config/default"

cd Marlin

rm -f Conf*.h _*screen.h

PINS="src/pins"
RAMPS="$PINS/ramps/pins_RAMPS.h"
BKUP="$PINS/ramps/pins_RAMPS.backup.h"
[ -f $BKUP ] && { cp "$BKUP" "$RAMPS" ; rm -f $BKUP ; }

wget -q "$RESTORE/Configuration.h" -O Configuration.h
wget -q "$RESTORE/Configuration_adv.h" -O Configuration_adv.h

cd - >/dev/null