"John W. Krahn" wrote:
>
> Sudarshan Raghavan wrote:
> >
> > On Wed, 2 Oct 2002, jontn_swift wrote:
> >
> > > This is a classic case for my favorite one-liner:
> > >
> > > perl -e'while(<>){print unless $seen{$_}++}' <infile >outfile
> >
> > You favourite one-liner can be even shorter
> > perl -n -e 'print unless $seen{$_}++' infile >outfile
>
> You want short? :-)
>
> perl -ne'$s{$_}++||print' infile >outfile
Or if you want something a bit more obfuscated.
perl -pe'$+{$_}++&&y+++cd' infile >outfile
perl -pe'$s{$_}++&&s{.+}$$s' infile >outfile
:-)
John
--
use Perl;
program
fulfillment
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