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| From: | Grisha Levit |
| Subject: | Re: coproc and existing variables |
| Date: | Tue, 17 May 2016 17:03:56 -0400 |
On Mon, May 16, 2016 at 4:44 PM, Grisha Levit <grishalevit@gmail.com> wrote:
- The %s_PID variable is unbound unconditionally
BTW, this is exploitable for unsetting read-only variables.
$ declare -r RO; declare -n ref_PID=RO; coproc ref { :; }; wait; declare -p RO
bash: ref_PID: readonly variable
[1] 13868
bash: declare: RO: not found
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