1# $FreeBSD$ 2 3# The construct ${#?} is ambiguous in POSIX.1-2008: it could be the length 4# of $? or it could be $# giving an error in the (impossible) case that it 5# is not set. 6# We use the former interpretation; it seems more useful. 7 8: 9[ "${#?}" = 1 ] || echo '${#?} wrong' 10(exit 42) 11[ "${#?}" = 2 ] || echo '${#?} wrong' 12