#!/bin/sh

if [ -z "$1" ]; then
	echo "Set EXIF timestamp from file modification time"
	echo "usage: $0 file1.jpg file2.jpg ..."
	exit 0
fi

while [ ! -z "$1" ]; do
	file="$1"

	if [ `basename "${file}" ".jpg"`".jpg" = "${file}" ]; then

		echo "setting EXIF timestamp for $file"

		# Write file modification time to EXIF timestamp
		exiftool "-DateTimeOriginal<FileModifyDate" "${file}"
	fi

	shift
done