1# $FreeBSD: head/bin/sh/tests/expansion/cmdsubst18.0 314637 2017-03-03 22:46:20Z jilles $
2
3x=X
4unset n
5r=${x+$(echo a)}${x-$(echo b)}${n+$(echo c)}${n-$(echo d)}$(echo e)
6[ "$r" = aXde ]
7