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  1. or download this
    system("script.sh >> filename");
  2. or download this
    open my $oldout, ">&STDOUT"
  or die "Can't dup STDOUT: $!";
...
system $script, @args;

open STDOUT, ">&", $oldout;
  3. or download this
    my $pid = fork;
if (defined $pid and $pid == 0) {
...
  exec $script, @args;
  exit 1;
}