Although you can use opendir and readdir to search through a directory, I think that using File::Find may be a better approach. I have to admit that I personally struggle to understand how to use File::Find directly, so I opt to use File::Find::Rule instead, which provides a different interface to File::Find.

Here's a different approach using File::Find::Rule:

use strict;
use warnings;

use feature 'say';

use File::Copy;
use File::Spec::Functions;
use File::Find::Rule;
use File::Path qw(make_path);
use Cwd;

my $pwd = cwd();
my $dir = catdir($pwd,'source');

my $rule = File::Find::Rule->new;
$rule->file;
$rule->maxdepth(1);
my @files = $rule->in($dir);

foreach my $file (@files) {
    my ($extension) = ($file =~ m/.+\.(.+)/);
    my $subdir = catdir($dir,$extension);
    
    if (!(-d $subdir)) {make_path($subdir);}
    copy($file,$subdir);
}

[download]

Here's the initial test directory that I used to test the script:

source
     test1.gif
     test1.pdf
     test1.txt
     test2.gif
     test2.pdf
     test2.txt
     test3.gif
     test3.pdf
     test3.txt

[download]

Here's the result after running the script:

source
     test1.gif
     test1.pdf
     test1.txt
     test2.gif
     test2.pdf
     test2.txt
     test3.gif
     test3.pdf
     test3.txt
     gif
          test1.gif
          test2.gif
          test3.gif
     pdf
          test1.pdf
          test2.pdf
          test3.pdf
     txt
          test1.txt
          test2.txt
          test3.txt

[download]

Although my code above doesn't deal with deleting the original file, I think that you should be able to modify it to meet your needs.

In reply to Re: Perl - Copy files to a newly created folder by dasgar
in thread Perl - Copy files to a newly created folder by Benichouniev

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