Hi.

I wrote a script to remove duplicate records on a text file. However, I don't think my way is the best way to do it since it gets a little slow with large files. This is the code I wrote: 
@clean = ();
@check = ();

open(LIST, 'file.txt') or die "Error 1";

while(<LIST>) {

  chomp $_;

  $count = 0;

  foreach $i (@check) {
    chomp $i;
    if($_ eq $i) { $count++; }
  }

  if($count >= 1) { next; }
  else { push(@clean,$_); push(@check,$_); }
}

close(LIST);

[download]
Any ideas on how to make this faster?

Thanks,
Ralph.

In reply to Removing duplicate records in text file by Anonymous Monk

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