SKIPBLANKS=
TMPDIR=/tmp
CASE=lower

while [[ "$1" = -* ]] # Remember, [[ = ]] does pattern match
do
	case $1 in
		-b)		SKIPBLANKS=TRUE ;;
		-t)		if [ -d "$2" ]
					then
					TMPDIR=$2
					shift
				else
					print "$0: -t takes a directory argument." >&2
					exit 1
				fi ;;
		-u)		CASE=upper ;;
		--)		break   ;;      # Stop processing options
			*)		print "$0: Invalid option $1 ignored." >&2 ;;
		esac
	shift
done