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

[Paul Jarc]

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