There are two really big red flags here (thanks Dominus). First, you have a group of variables that are all named similarly; you should be using an array instead, e.g. @dir_vn (which would then have 6 elements). If they were named similarly but were distinguished by some "property name" (instead of a number, as here) you would probably want a hash; for example, $animal_name, $animal_color, $animal_food becomes %animal with name, color, and food as keys. Second, you're repeating essentially the same block of code six times! Ouch. Clearly you need some sort of loop. Happily, you recognized that something's not quite right here.

It turns out that you don't even need the array at all; the only place it ends up being used is in the loop control statement. See below.

#!/usr/local/bin/perl 
 
my $dir_split = '/opt/stats/data/split'; 
 
for $dir ($dir_split, map { $dir_split . "/vn$_" } 1..6) { 
  opendir DIR, $dir or die $!; 
  my @files = grep -f "$dir/$_", readdir DIR;  
  # the chomp was unnecessary
  closedir DIR; 
  chdir($dir); 
  unlink @files or die $!; 
}
[download]

hdp.