* Philippe 'BooK' Bruhat ([EMAIL PROTECTED]) wrote:
> Hi,
>
> I just discovered this, and do not know if it's commonly used in golf
> (it's been a long time since I last played): if you only need a single
> hash in your script, you can use the symbol table itself.
>
> Compare the classic "remove duplicate lines" one-liner
>
> perl -ne'$s{$_}++||print' file
>
> with
>
> perl -ne'$$_++||print' file
Whoo, nice :-) I'll add it to my notes, thanks :-)
> Three characters in one shot!
>
> --
> Philippe "BooK" Bruhat
>
> The learned man makes a mistake but once... but the truly stupid keep
> practicing until they get it right.
> (Moral from Groo The Wanderer #75 (Epic))
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--
Jose Alves de Castro <[EMAIL PROTECTED]>
http://jose-castro.org/
