Hi Jorge,

> I'm trying to figure out how to capture the standard error of a piped
> process without resorting to forking an additional sh process.

If it is enough to redirect it to a file, you might enclose the pipe
call with 'err'. The following appends the message to "error.log":

   (err "+error.log"
      (in '(ls "doesntexit") (line)) )

Cheers,
- Alex
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