I am trying to rename my subFolders, so that if folder1 exists, it will rename folder1.1, and folder1.2 respectively - 
use strict;
use warnings;

my $existingFile;
my $filename;

print "provide filename: ";
$existingFile    = <STDIN>;
$filename        = "folder1";
chomp $existingFile;
chomp $filename;

if (-e $filename) {
  print "File Exists! Renaming with .[x]\n";
  my $counter++;
    rename "$existingFile", "$filename.[$counter]";
  } else {
    rename "$existingFile", "$filename";
}
exit;

[download]
OUTPUT
provide filename: folder1 - Copy
File Exists! Renaming with .[x]

[download]
It does the first 1, as folder1.1, but doesn't do the 2nd, 3rd, or 4th etc.

Please let me know.

In reply to regex renaming with existing files by ArifS

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