use warnings;
use strict;
use Devel::Peek;

my $file = $0;

my $mode = sprintf '%04o', (stat $file)[2] & 07777;
print "sprintf Permissions are $mode\n";
print "\twhich is ",oct($mode)," in decimal\n";
print Dump(\$mode),"\n\n";

my $n_mode = (stat $file)[2] & 07777;
print "stat Permissions are $n_mode decimal\n";
print Dump(\$n_mode),"\n";