I have the following code, but can't seem to see anything other than the startup versioning information from diskpart when I print <OUT>. Do I have to flush after I print to the <IN> on Windows? 

use FileHandle;
use IPC::Open2;

my $pid;
eval 
{
    $pid = open2(\*OUT, \*IN, 'diskpart');
};

if ($@ and $@ =~ /^open2:/) 
{
    die "$@:$!\n";
}

print IN "list disk";
close IN;

while(<OUT>) 
{
    print "$line_no: $_";
    $line_no++;
}

close OUT;
exit(0);

[download]

So far all I get is this..

0:

1: Microsoft DiskPart version 6.0.6002

2: Copyright (C) 1999-2007 Microsoft Corporation.

3: On computer: HITAUTO-2008X86

4:

In reply to open2 with windows diskpart by wxfield

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.