# foo.pl - print a file in reverse

use strict;
use warnings;

my $FName = shift // die "Expected a filename!";
open my $FH, '<', $FName or die "Can't open $FName: $!\n";

# Read all the lines
my @lines = <$FH>;

# Reverse the order
@lines = reverse @lines;

for my $line (@lines) {
    print $line;
}