I'm not sure about the best way to handle this but a fork(); exec(); combination seems to work: 
#!/usr/local/bin/perl -w

$SIG{INT} = sub {
    warn "in parent";
    exit;
};

for ( 0 .. 100) {
    my $pid = fork;
    unless (defined $pid) {
        die "Error forking";
    }
    unless ($pid) {
        exec ("./test2.pl");
    }
    else {
        wait;
    }
}

[download]
and... 
# test2.pl
#!/usr/local/bin/perl

$SIG{INT} = sub { warn "in child\n"; exit; };

sleep 100;

[download]
Hitting ^C: 
in parent at ./test.pl line 4.
in child
> <--- shell prompt.

[download]
"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re: Sending signal to running script by Joost
in thread Sending signal to running script by mhearse

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.