I haven't played with the Expect module as Atcroft suggests so it may be a better solution than what I pose here. But you can probably do this using open2 or open3 on a *nix system. That will return a filehandle for the other processes STDIN and STDOUT (and STDERR with open3). These you could use select on (IO::Select for your own sanity) and then when it is ready for writing, send it your expected response. This is untested, but a filehandle is a filehandle, right? So it should work.

But if you are really doing this to make directories, do a mkdir like Atcroft suggests, please. :)

Good luck,
{NULE}
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