sub printattr{
    my $file = shift;
    my @fileattr = split(//,(stat($file))[2]);
    print "[";
    for my $attr (@fileattr){
        if($attr eq 0){
            print "---";
        }
        elsif($attr eq 1){
            print "--x";
        }
        elsif($attr eq 2){
            print "-w-";
        }
        elsif($attr eq 3){
            print "-wx";
        }
        elsif($attr eq 4){
            print "r--";
        }
        elsif($attr eq 5){
            print "r-x";
        }
        elsif($attr eq 6){
            print "rw-";
        }
        else{
            print "rwx"
        }
    }
    print "]\n";
}

##</code><code>##

use feature 'state';

sub printattr
{
    state $attrs = [ qw( --- --x -w- -wx r-- r-x rw- rwx ) ];
    state $maxi  = $#$attrs;
    my   ($file) = @_;

    print '[';
    print $attrs->[$_ < $maxi ? $_ : $maxi] for split //, (stat $file)[2];
    print "]\n";
}

##</code><code>##

sub print_attr
{
    state $attrs = [ qw( --- --x -w- -wx r-- r-x rw- rwx rwx rwx) ];
    my   ($file) = @_;

    print '[';
    print $attrs->[$_] for split //, (stat $file)[2];
    print "]\n";
}