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  1. or download this
    my $hash_b = $hash1->{'a'}->{'b'};
    if ($hash_b->{c}) {
      $hash2->{bob} = $hash_b->{c};
    }
    
  2. or download this
    $"=q;grep;;$,=q"grep";for(`find . -name ".saves*~"`){s;$/;;;/(.*-(\d+)
    +-.*)$/;
    $_=["ps -e -o pid | "," $2 | "," -v "," "];`@$_`?{print"+ $1"}:{print"
    +- $1"}&&`rm $1`;
    print$\;}