Re: Bash 4.4 beta - parameter transformation - parameter attributes

[Chet Ramey]

On 11/2/15 7:36 PM, Dennis Williamson wrote:

> I guess the point I'm trying to get to is that I don't see
> how "${colors[*]@a}" or "${colors@A}" are useful whereas their opposites
> are ("${colors@a}" and "${colors[*]@A}") regardless of whether the
> parameter is an array or scalar. By the way, subscripting using "@" with
> these transformations also doesn't seem to be useful.
> 
> It may be that this is not a matter for changing the Bash code or
> documentation but that it's necessary to consider these behaviors when
> making good coding practice choices.

Consistency is important.  All the operators accept the same set of
operands on the lhs, even if some combinations are not really useful.

Chet

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