My perl script calls a Java program. It captures the output of that program(to handle the exception) and display the output to screen as well.
When run the Java program at DOS prompt, it generates:
RLU: Using PropertyResourceBundle...
Record: 1 Result: surveyresponse.jsp
Record: 2 Result: surveyresponse.jsp
Record: 3 Result: surveyresponse.jsp
Record: 4 Result: surveyresponse.jsp
Hit return to exit.

[download]
The "Hit return to exit." causes the problem. When I run my perl script, it doesn't print the output to screen until I hit the return key. I guess Java program still hangs there because lack of "hit return". How to solve it? Hope I explain my problem clearly.
Thanks in advance.
-Hui 
************ my script *************
#! /per/bin/perl -w
use strict;

my($program) = 'd:\ema\extension\win32\surveyimport
d:\ema\extension\win32\Yahoo.cfg';
my(@res);
open(RES, "$program |") || die "Unable to run
$program: $!\n";

foreach (<RES>) {
  push @res, $_;
  #print "$_";
}
print $?;
print @res;

close(RES);
exit(0);
***************************************

[download]

Edit kudra, 2002-04-19 Changed title per ntc request

In reply to Program hangs while gathering external program output by hdeng419

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.