tye helped me out with this code a while back on another thread, and i just wanted to finish this up with the working code, so here it is~ 
#!/usr/bin/perl
# test1.pl
use IPC::Open3;
$n = "\n";
open( OUTPUT, ">&STDOUT" ) or 
    die "Can't dup STDOUT to OUTPUT: $!$n";
open( OUTERR, ">&STDERR" ) or 
    die "Can't dup STDERR to OUTERR: $!$n";
eval { 
    $pid = open3("<&STDIN", \*OUTPUT, \*OUTERR, 'perl return.pl') ;
    $val = waitpid(-1,0); # <--- added this line
};
$@ && die "ERROR: $@$n";
@results = <OUTPUT>;
@errors  = <OUTERR>;
close OUTPUT;
close OUTERR;
print "---pid$n";     print $pid . $n;
print "---\$?$n";     print $? . $n; # <--- prints exit val
print "---results$n"; foreach(@results) { print $_ . $n };
print "---errors$n";  foreach(@errors)  { print $_ . $n };

[download]

~Particle

In reply to Re: once again: program output and return code by particle
in thread once again: program output and return code by particle

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.