Dear Monks,
Im using the below code to remove repeated lines in my file.

sub remove_repeated(){
  my %seen();
  local @ARGV = ($file_name);
  local $^I = ".bak";
  while(<>){
    %seen {$_}++;
    next if $seen{$_}>1;
    print;
  }
}

[download]

The problem is that if my input file has 2 lines with just a difference of a white space at the beginning or end, then those 2 lines are considered unique by the above code. How to change it so as to neglect white space characters?

In reply to remove repeated lines with space differences by joeperl

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