opendir  (DIR, ".") or die "$!";
my @files = grep {/conf.*?\.txt/}  readdir DIR;
close DIR;
print"\nNo input files found.\n" if scalar(@files)==0;

foreach my $file (@files) {
  my $content = do { local( @ARGV, $/ ) = $file ; <> } ; 
  print "parsing $file...\n";
  my ($inc_vals)=$content=~/inc_vals=(.*?)\n/
  my @inc_vals=split(/, /, $inc_vals) unless $inc_vals=~/^\s$/;
}

foreach my $value (@inc_vals) {
	print "$value\n";
}