Re: piping input to executable reading from /dev/tty?

["Dan B." <danb at kempt dot net>]

Eric Blake wrote:
> On 06/20/2012 10:33 AM, Dan B. wrote:
> > Is there any way to redirect /dev/tty similarly to how stdin can be
> > redirected (e.g., like "echo ... | someexecutable")?
>
> Yes; use 'expect'.
>
> > Does Cygwin (or Unix/Linux, for that matter) have any equivalent way
> > of redirecting /dev/tty?
> >
> > Can /dev/tty be redirected at all?  (I would guess that something
> > could be done with pseudoterminals, but I know very little about
> > them.)
>
> Yes, 'expect' is the command line tool that lets you script around
> programs that expect to be run interactively, but where you want to
> script the input that your program will see.

Does expect use only redirection of file descriptors, or can it also
redirect references to /dev/tty?

Daniel





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