On Sun, Dec 6, 2015 at 9:38 PM, shawn wilson <ag4ve...@gmail.com> wrote:
> declare -a array=(aaaaaaaa bbbbbbbb cccccccc); echo "${!array[@]}";
> echo "${!array[@]:-}"
>
> also, "${!array[@]:foo}" and :+foo and :-foo are all empty as well -
> I'm pretty sure this is not intended?
>
${!name[@]:-word}, ${!name[@]:+word}, and ${!name[@]:offset:length}
are not explicitly documented as valid forms of parameter expansion,
and never has been.If you do that in bash 4.4, you'll get a bad substitution error message.
