Re: using exec to close a fd in a var crashes bash

[Chet Ramey]

On 8/23/23 9:50 AM, Zachary Santer wrote:

> In the Bash man page:
> varredir_close
>          If set, the shell automatically closes file descriptors assigned
> using the {varname} redirection syntax (see REDIRECTION above) instead of
> leaving them open when the command  completes.
>
> I feel like the man page would benefit from that caveat about exec. I felt
> the need to test that bit myself. "Surely not."

That addresses the aspect of the behavior that people complain about. If
you use `exec', you want the redirections to persist -- that's the purpose
of using redirections with exec.

Chet

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/