Which could be condensed to:

perl -ne 'print unless $seen{$_}++' in.txt > out.txt

and if you fancy replacing it directly, whilst makign a backup file:

perl -i.bak -ne 'print unless $seen{$_}++' in.txt

--
Steve Marvell

In reply to Re: Re: finding and deleting repeated lines in a file by marvell
in thread finding and deleting repeated lines in a file by Becky

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