Please monks you are my only hope:

This piece of code opens a file an dumps contents into array. I want to get rid of possible repeated lines of text. When I run the code, it substitutes repeated elements for only one instance. Yes this is what I want but I do not want the order of the elements to change. Current implementation does not keep correct order when I dump the unique lines into a new file. Please help! 

open (FILE,"$tempfile5") || die "Cannot read from $tempfile5\n";
my %hsh;

open (OUTF,">$tempfile6") || die "Cannot write to $tempfile6\n";
my @lines = <FILE>;
    
undef @hsh{@lines};
my @lines2 = keys %hsh;
    
    
foreach my $instance (@lines2)
{
   print OUTF $instance;
}

close FILE;
close OUTF;

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Edited: ~Fri Aug 9 22:02:52 2002 (GMT) by footpad: Revised HTML formatting to be more appropriate, e.g. replace <I> tags with <CODE> tags and removed extraneous <BR> tags.

In reply to Unique array w/o repeated elements and still keep the original order! by chuleto1

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