Capturing file descriptor 3, or alternatives.

[Bill Freeman]

On Thu, Jun 21, 2012 at 8:43 AM, Michael ODonnell
<michael.odonnell at comcast.net> wrote:
>
>
>> What I haven't figured out is how to return the results to the
>> parent shell.  Not because I can't write it somewhere other
>> than the tty, but because I don't know how to get the shell to
>> hook up a pipe to that extra fd, to which I can write, and from
>> which the shell can later read (while leaving the tty connected
>> to the usual fds.
>
> I was suggesting the possibility that an existing tool might
> help you by somehow interacting with the user via some channel
> other than stdout and then uttering the results back to the
> parent shell via stdout, relieving you of the task of messing
> with additional pipes and such.

Ah, well, there is no channel other than the tty.