diff --git a/cli/variables.pl b/cli/variables.pl
index f810684..00577cf 100644
--- a/cli/variables.pl
+++ b/cli/variables.pl
@@ -9,3 +9,67 @@ print "Hello, $firstname\n";
 $firstname = "John";
 
 print "Goodbye, $firstname\n";
+
+
+my $variable = "\0";
+my $another_variable = 2;
+my @array_variable = qw(one two three);
+
+$variable = 3;
+print "$variable\n";
+$variable = 3.1415926;
+print "$variable\n";
+$variable = 3.402823669209384634633e+38;
+print "$variable\n";
+$variable = $another_variable + 1;
+print "$variable\n";
+$variable = 'Can contain text';
+print "$variable\n";
+$variable = \$another_variable;
+print "$variable\n";
+$variable = \@array_variable;
+print "$variable\n";
+
+
+my @Array1 = (1, 2, 3);
+my @Array2 = (4, 5, 6);
+my @Array3 = (7, 8, 9);
+
+@array_variable = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
+print "@array_variable\n";
+@array_variable = (1 .. 10);
+print "@array_variable\n";
+@array_variable = ('John', 'Paul', 'George', 'Ringo');
+print "@array_variable\n";
+@array_variable = qw/John Paul George Ringo/;
+print "@array_variable\n";
+@array_variable = qw/red blue 1 green 5/;
+print "@array_variable\n";
+@array_variable = (\@Array1, \@Array2, \@Array3);
+print "@array_variable\n";
+
+my $idx = 2;
+
+$array_variable[0] = 1;
+print "@array_variable\n";
+$array_variable[$idx] = 1;
+print "@array_variable\n";
+
+my %hash = (
+    'key1' => 'value1',
+    'key2' => 'value2',
+    'key3' => 'value3',
+);
+print %hash, "\n";
+
+$hash{'key1'} = 'newval1';
+print %hash, "\n";
+
+
+sub fib {
+    my $n = shift();
+    return $n if $n < 2;
+    return fib($n - 1) + fib($n - 2);
+}
+
+print fib(14), "\n";
diff --git a/cli/variables.py b/cli/variables.py
deleted file mode 100644
index ca45e66..0000000
--- a/cli/variables.py
+++ /dev/null
@@ -1,7 +0,0 @@
-firstname = "Jonathan"
-
-print "Hello, " + firstname
-
-firstname = "John"
-
-print "Goodbye, " + firstname