#!/usr/bin/env bash

set -e

if [ $# -lt 1 ]; then
    echo "Usage: $0 input.hex [output.bin]"
    exit 1
fi

input="$1"

if [ $# -ge 2 ]; then
    output="$2"
else
    output="${input%.*}.bin"
fi

perl -ne 's/#.*//; print pack("H*", $_ =~ s/\s+//gr)' "$input" > "$output"

echo "Wrote $output"