On 2/27/18 11:23 AM, Chet Ramey wrote:
> On 2/26/18 11:34 AM, Robert Elz wrote:
>
>> I believe that most shells that implement local (which is most shells)
>> implement unset of a local as meaning the local var becomes unset,
>> not that it vanishes and the global reappears.
>
> That was the objection: that unset in a function unset the local instance
> of the variable, and left the global instance in place.
And, as a followup, allowing `unset' in a function to remove an instance
of a variable in a previous scope, even if that scope was a function and
the variable was a local variable there, while still leaving any global
instance unchanged.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU [email protected] http://tiswww.cwru.edu/~chet/
