You need to pass in a function reference to run_on_finish(). You could write:

my $hello_ref = sub { print "Hello!\n"; };
$pm->run_on_finish($hello_ref);

[download]
or: 
sub hello { print "Hello!\n"; }
$pm->run_on_finish(\&hello);

[download]

In reply to Re: Problem with ForkManager by chrestomanci
in thread Problem with ForkManager by Anonymous Monk

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