my original number was 9 but now with the code u guys gave me, we incremented into 10. I need to plug this number back into the file name but creating a new file called "name_0010" (originally it was "name_0009"). Here is the code I currently have, I know theres a more efficient way to do this...

$newfile = substr($newfile_n,0, 4);
$newfile =~ s/^(0)+//;
++$newfile;
print"$newfile\n";
$newfile = "000".$newfile; #if it gets to 100 then it will look like this "0100"
substr($newfile, 1, 4);