I like this minimalistic bit of code :-) ... You win! 

perl -pe'$_{$_}++and$_=$,'

[download]

perl -Te 'print map { chr((ord)-((10,20,2,7)[$i++])) } split //,"turo"'

In reply to Re^2: Deleting duplicate lines from file by turo
in thread Deleting duplicate lines from file by Win

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