1# $FreeBSD: head/tools/regression/bin/sh/expansion/plus-minus8.0 219623 2011-03-13 20:02:39Z jilles $ 2 3set -- 1 2 3 4 5 6 7 8 9 10 11 12 13 4[ "${#+hi}" = hi ] || echo '${#+hi} wrong' 5[ "${#-hi}" = 13 ] || echo '${#-hi} wrong' 6