I need to extract unique values from one file and create a new file with these values only.
2 Questions,
one...How do I specify unique vaules, the script below pulls out the correct info, but does not remove duplicate values. My search pattern looks for data that preceeded by a tab then a "C" then one or more "M" then any number of digits and returns only the digits, some digits are duplicated I need only unique numbers

and two...I can get the file renamed but I cannot get only the unique data into the file, all the data is moved into the file, I only need the selected data.

Here is the script, (be kind I am just learning perl) 

$file = "project.txt"; 
open(FILE,"$file"); 
open(OUTPUT,">> project.out");

while(my $a=<FILE>) {
  if($a=~/\tCM+(\d*)/io) {
   print "$1\n";
   print OUTPUT $a;
  }
}
close FILE;
close OUTPUT;

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update (broquaint): added formatting

In reply to creating a new file with unique values by afasch01

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