On 03/22/2016 09:39 AM, Ruediger Meier wrote:
You could also let true behave like rm if POSIXLY_CORRECT is not set or
if more than zero option given.
This misunderstands the intent of POSIXLY_CORRECT. Setting
POSIXLY_CORRECT does not mean "remove all extensions not specified by
POSIX". It merely means "conform to POSIX even where the default is to
not conform".
It might be helpful to have some other environment variable that meant
"try to be strict about supporting only behavior required by POSIX", as
one could use that to develop shell scripts that were more portable.
However, that would be a lot of work to implement, and it's not clear
it's worth the hassle to develop, maintain, and document. Plus, POSIX
does not always specify behavior, so portability wouldn't be guaranteed
by this.
