print OUT ($1) if (!exists($naccess{$1}));
or
print OUT ($1) unless (exists($naccess{$1}));

Although it's not quite proper English, it reads rather nicely if you remove the optional parens:
print OUT ($1) if not exists $naccess{$1};

Update: It's useless to print $naccess{$1} if it doesn't exist! I substituted $naccess{$1} with the key ($1).

In reply to Re: hash question by ikegami
in thread hash question by Anonymous Monk

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