#!/bin/sh
get_filename() {
	printf "%s\n" "$*" | sed -e 's/^\(.*\)\.[^.]*$/\1/'
}
get_extension() {
	if [ -n "$(printf "%s\n" "$*" | sed -e 's/^[^.]*//')" ]; then
		printf "%s\n" "$*" | sed -e 's/^.*\(\.[^.]*$\)/\1/'
	else
		printf "%s\n" ""
	fi
}