On May 10, Jonathan E. Paton said:
>> I meant to convert the email address to lowercase...
>
>Wonder where you got that idea? ;-)
Oh, hush. ;) We all had the same answers, more or less.
>Looks like that question has been quite well covered. Under Unix, my simple
>version can be reduced to:
>
>cat list.current | perl -ne 'print if not $seen{split'|'}++' > list.new
Not so. First, you've got quote problems. Then you need to backslash the
|. Then you need to turn
split /\|/
into
(split /\|/)[3]
because $hash{ split ... } calls split() in scalar context, and that ain't
no good here.
perl -ne '!$seen{(split/\|/)[3]}++&&print' input > output
--
Jeff "japhy" Pinyan [EMAIL PROTECTED] http://www.pobox.com/~japhy/
RPI Acacia brother #734 http://www.perlmonks.org/ http://www.cpan.org/
** Look for "Regular Expressions in Perl" published by Manning, in 2002 **
<stu> what does y/// stand for? <tenderpuss> why, yansliterate of course.
[ I'm looking for programming work. If you like my work, let me know. ]
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