>>>>> On Wed, 19 Feb 2020, Stephane Chazelas wrote: > 2020-02-19 17:18:14 +0100, Ulrich Mueller: > [...] >> So, is there any syntax that allows to test if a value has been assigned >> to the array variable? Especially, to distinguish VARNAME=() (empty >> array) from VARNAME being unset? > [...]
> You could do: > if typeset -p var 2> /dev/null | grep -q '='; then > echo var has a value > fi > [...] Yes, basically that's what I had suggested as a workaround in the downstream bug: https://bugs.gentoo.org/710076#c2 Still, I think it's sad that there isn't a command that can test for assigned vs void variable, without the need for parsing of declare -p output.
