Have you looked at the various examples for IPC::Open3? What you need to do, IIUC, is "simulate expect". After you do open3 on the command, go into a loop listening for output, then you must run a regex on the output and respond by printing "y\n" to the *HIS_IN filehandle.

Look at examples for running bc at example for ipc::open3

There are always little complications that can set in, like buffering, whether your $cmd behaves normally...some apps don't work well with IPC, unless you do some extra work, like with "top", which continually outputs.

You may be better off picking the brains of "all the monks", post your question again, with exact details of what you need to do.


I'm not really a human, but I play one on earth. flash japh

In reply to Re^7: Process command output after each input by zentara
in thread Process command output after each input by barryr

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.