freebsd-dev/tools/regression/bin/sh/expansion/set-u2.0

# $FreeBSD$

set -u
: $* $@ "$@" "$*"
set -- x
: $* $@ "$@" "$*"
shift $#
: $* $@ "$@" "$*"
set -- y
set --
: $* $@ "$@" "$*"
exit 0
sh: Exempt $@ and $* from set -u This seems more useful and will likely be in the next POSIX standard. Also document more precisely in the man page what set -u does (note that $@, $* and $! are the only special parameters that can ever be unset, all the others are always set, although they may be empty). 2009-10-24 21:20:04 +00:00			`# $FreeBSD$`

			`set -u`
			`: $* $@ "$@" "$*"`
			`set -- x`
			`: $* $@ "$@" "$*"`
			`shift $#`
			`: $* $@ "$@" "$*"`
			`set -- y`
			`set --`
			`: $* $@ "$@" "$*"`
			`exit 0`