Re: Indices of array variables are sometimes considered unset (or just display an error).

From	Grisha Levit <grishalevit@gmail.com>
Newsgroups	gnu.bash.bug
Subject	Re: Indices of array variables are sometimes considered unset (or just display an error).
Date	2018-11-06 01:03 -0500
Message-ID	<mailman.3541.1541484228.1284.bug-bash@gnu.org> (permalink)
References	<87va5bp5fr.fsf@gmail.com> <CAN6vQO8wb4+Peahk-+1+U6suFUPTBAYpj8vpBgGEvN-sBEBkjA@mail.gmail.com> <CAOSMAut13CHsDbwbeyMc2_XkK+rP_y-2XLWnL6_vp6Ggz-uYBg@mail.gmail.com>

Show all headers | View raw

On Mon, Nov 5, 2018 at 10:38 PM Eduardo Bustamante <dualbus@gmail.com>
wrote:
> Sorry, I'm having a hard time following this email thread.

I *think* the point is that OP expected that:

(a) ${!var[@]-foo} expands to the indexes of var if ${var[@]} if set, else
    to `foo'

whereas the behavior they observed is:

(b) ${!var[@]-foo} expands to the value of the variable whose name is
stored
    in ${var[@]} or to `foo' if that variable is unset

Their expectation seems reasonable since "the variable whose name is stored
in ${var[@]}" is kind of a weird thing.

Back to gnu.bash.bug | Previous | Next | Find similar | Unroll thread

Thread

Re: Indices of array variables are sometimes considered unset (or just display an error). Grisha Levit <grishalevit@gmail.com> - 2018-11-06 01:03 -0500

csiph-web