Re: access exported var

[Chet Ramey]

On 1/16/23 12:58 PM, Peng Yu wrote:
> If that is the case, for the same reason, why $Z returns the first
> element of the array Z? 

Korn put that in for backwards compatibility, so you could change a
variable that previously had a meaning into an array and not have to
change existing scripts. FUNCNAME is a bash example here. That has
value. Exporting an array as its first element doesn't; it's simply an
undesirable side effect.

> If $Z returns the first element of the array
> Z, then it would be surprising that export Z does not make the first
> element available in the environment.

Except for everyone who says "I exported the array, why do I only get
the first element?"

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/