Re: bash: request for a way to return variables to the parent of a subshell

[Richard Neill]

Thank you. That's a really neat solution - and it would never have 
occurred to me. I always think from left to right!

Richard



Paul Jarc wrote:
> Richard Neill <rn214@hermes.cam.ac.uk> wrote:
> > the aim is to parse the output of "ffmpeg -formats" to see whether
> > certain codecs are supported by that build.
>
> I'd use something like:
> while read line; do
>   ...
> done < <(ffmpeg -formats 2>/dev/null)
>
> That puts ffmpeg into a subshell instead of read.
>
>
> paul