while (<stdin>){
    print map((s/$/ / && $_), grep(!$a{$_}++, split m/\s+/,$_));
    print "\n";
}

[download]
Update: Fri Sep 20 10:25:01 2002
Whoops, forgot the \s+.. And switch the regex delims by request.

In reply to Re: Removing repeated words by abitkin
in thread Removing repeated words by abitkin

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