Yang Zhang <yanghates...@gmail.com> writes:
> As a result I'm forced to use "${@:-}" or something like that
The correct idiom is ${1+"$@"}, which also works around the old Bourne
shell bug that causes "$@" to expand to a single empty argument when
there are no positional arguments.
Andreas.
--
Andreas Schwab, sch...@linux-m68k.org
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"And now for something completely different."
