Re: [PATCH v3 1/1] exec: run final pipeline command in a subshell in sh mode

[Lawrence Velázquez <vq@xxxxxxxxx>]

On Sun, Jan 3, 2021, at 7:22 PM, brian m. carlson wrote:
> zsh typically runs the final command in a pipeline in the main shell
> instead of a subshell.  However, POSIX specifies that all commands in a
> pipeline run in a subshell, but permits zsh's behavior as an extension.
> The default /bin/sh implementations on various Linux distros and the
> BSDs always use a subshell for all components of a pipeline.
> 
> Since zsh may be used as /bin/sh in some cases (such as macOS Catalina),
> it makes sense to have the common sh behavior when emulating sh, so do
> that by checking for being the final item of a multi-item pipeline and
> creating a subshell in that case.

ping for review

vq