ft

FN="$1"
case "$FN" in
	(*.gif) echo "a gif file"
			;;
	*.[Pp][Nn][Gg]) echo "a png file"
			;;
	*.jpg | *.JPEG) echo "a jpg file"
			;;
	*.tif | *.TIFF) echo "a TIFF file"
			;;&
	*.mp3 | *.wav) echo "a music file"
			;&
	* ) printf "File '%s' not supported.\n" "$FN"
		exit 1;
			;;
esac