On 7/23/19 11:20 AM, Sam Liddicott wrote:
>
>
> On Tue, 23 Jul 2019 at 16:15, Sam Liddicott <[email protected]
> <mailto:[email protected]>> wrote:
>
>
>
> On Tue, 23 Jul 2019 at 16:13, Chet Ramey <[email protected]
> <mailto:[email protected]>> wrote:
>
> On 7/23/19 11:11 AM, Sam Liddicott wrote:
>
> > The report concerns the different behaviour with internal and
> external
> > operations.
>
> Right. The close-on-exec is deliberate. That's how it was intended.
>
>
> Doesn't close-on-exec usually takes effect only on the process that
> does the exec?
> i.e. the fork that does the exec, not the parent process?
>
>
> It got closed in the parent. The lsof is running for the parent, the main
> process. /bin/echo has quit before the lsof runs.
You mean case 2 in your original post? That's because redirections are
performed in the child process forked to run /bin/echo, so the fd never
exists in the parent process. I thought you were talking about case 1,
with the builtin echo.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU [email protected] http://tiswww.cwru.edu/~chet/
