--- /dev/null
+# $FreeBSD: src/tools/regression/bin/sh/parameters/positional1.0,v 1.1 2011/05/21 14:52:26 jilles Exp $
+
+set -- a b c d e f g h i j
+[ "$1" = a ] || echo "error at line $LINENO"
+[ "${1}" = a ] || echo "error at line $LINENO"
+[ "${1-foo}" = a ] || echo "error at line $LINENO"
+[ "${1+foo}" = foo ] || echo "error at line $LINENO"
+[ "$1+foo" = a+foo ] || echo "error at line $LINENO"
+[ "$10" = a0 ] || echo "error at line $LINENO"
+[ "$100" = a00 ] || echo "error at line $LINENO"
+[ "${10}" = j ] || echo "error at line $LINENO"
+[ "${10-foo}" = j ] || echo "error at line $LINENO"
+[ "${100-foo}" = foo ] || echo "error at line $LINENO"