"Schwarz, Konrad" <konrad.schw...@siemens.com> wrote:
> > However, I would argue that non-directory files that have the
> > executable bit set but that cannot be loaded by exec*() are mis-
> > configured -- perhaps this needs to be stated somewhere.
>
> Upon further reflection, the above is wrong: the POSIX shell
> will attempt to run any file that cannot be loaded by exec*()
> as a script in a sub-shell. The result of the sub-shell
> is taken as the new $?.
This is what happened in the 1970s at a time when a different CPU architecture
was highly improbable.
Modern shells tend to open the file and to check whether it contains an
excutable header for a wrong architecture.
Jörg
--
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