Rob Dixon wrote:
> obdulio santana wrote:
>> May be this helps
>>
>> perl -lne "print if ++$D{$_} == 1" address.txt
>
> You may prefer the cuteness of
>
> perl -lne "print unless $D{$_}++" address.txt
My apologies. That requires single quotes:
perl -lne 'print unless $D{$_}++' address.txt
to avoid perpetuating the earlier problem.
Rob
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
http://learn.perl.org/
