Re: Command substitution and errexit

[Nikolai Kondrashov]

On 10/16/2012 03:16 PM, Greg Wooledge wrote:
> On Mon, Oct 15, 2012 at 08:08:10PM -0400, DJ Mills wrote:
> > done<  <(set -o)
>
> Huh... that's interesting.  I wouldn't have expected it, but it turns
> out you don't "lose" the value of errexit in a process substitution the
> way you do in a command substitution.
>
> imadev:~$ bash -c 'set -e; x=$(set +o); grep errexit<<<"$x"'
> set +o errexit
> imadev:~$ bash -c 'set -e; grep errexit<(set +o)'
> set -o errexit
>
> So, assuming Nikolai still wants to go with his current design, I guess
> he could use code like this:
>
> read -rd '' settings<  <(set +o)
> ...
> eval "$settings"

That would do nicely, thanks Greg!

However, is this as supposed to be? Because, if it's not, or there is no
certainty, I'd rather not use it.

Thanks.

Sincerely,
Nick