Hi, I needed to kill the child processes recursively and went through all the suggestions on this thread and the related. Thanks for everybody's input. While killfam is great, i wanted to see if there was a non module way of doing this(in our environment, i am discouraged to install modules unless its absolutely needed). So i have done it using setpgrp. I just want to share that here. Below is a sample: 
#!/usr/bin/perl -w

use strict;
use POSIX "WNOHANG";

setpgrp(0, 0);

if(my $pid = fork) {
#parent
        print "RESULT: $pid\n";
        my $kid;
        my $count;
        do {
                $kid = waitpid(-1, WNOHANG);
                sleep 1;
                $count++;
                if ($count > 15) {
                        print "I have waited too long. self destructin
+g\n";
                        my $GID = getpgrp($pid);
                        `kill -9 -$GID`;
                }
        } until $kid == $pid;
} else {
#child
        local $SIG{CHLD} = sub { wait() };
        system("sleep 100");
        exit;
}

print "I am all done\n";

[download]

In reply to Re^3: Update: Killing a process and, recursively, all its children by yogi
in thread Killing a process and, recursively, all its children by bronto

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.