I'm still endorsing IO::All:

#!/usr/bin/env perl

use strict;
use warnings;
use IO::All;
use feature qw(say);

say for io('myDir')->all;

__END__

karls-mac-mini:monks karl$ mkdir myDir

karls-mac-mini:monks karl$ touch myDir/File.txt

karls-mac-mini:monks karl$ ls -al myDir/
total 0
drwxr-xr-x    3 karl  karl    102  6 Mär 18:38 .
drwxr-xr-x  410 karl  karl  13940  6 Mär 18:44 ..
-rw-r--r--    1 karl  karl      0  6 Mär 18:38 File.txt

karls-mac-mini:monks karl$ ./1119062.pl
myDir/File.txt
[download]

From the docs:

all (For directories)
Returns a list of IO::All objects for all files and subdirectories in 
+a directory.

'.' and '..' are excluded.
[download]

Regards, Karl