From: Gyoung-Yoon Noh <nohmad@...>
Date: 2005-10-06T06:24:37+09:00
Subject: Re: One-liner removing duplicate lines

ruby -ne 'BEGIN{$s={}};$s[$_]=nil;END{puts$s}' infile > outfile

On 10/6/05, Damien Wyart <damien.wyart@free.fr> wrote:
> Hello,
>
> Converting from Perl to Ruby, I am trying to find an equivalent to this
> Perl one-liner removing duplicate lines in a file (without sorting it at
> first) :
>
>    perl -ne'$s{$_}++||print' infile >outfile
>
> I guess uniq method could be used, but I can't find how.
>
>
> Many thanks in advance,
>
> --
> Damien Wyart
>
>


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