Yes. Here is one way:

...
close CHILD;

sub bar
{
    my $bar = shift;
    print "modified foo($bar)\n";
}

*foo = *bar;

foo('child');
...
[download]

Output:

12:39 >perl 844_SoPW.pl
original foo(parent)
modified foo(child)
original foo(the end)

12:39 >
[download]

See perlmod#Symbol-Tables.

Hope that helps,

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