Assignment operators

The = operator is an assignment operator. It is used to assign the value of its right-hand side operand to the variable on the left. In the simplest case, the operator is used like this:

my $a;
$a = 42;

The action is not limited to scalars only. Arrays, hashes, or instances of classes (we will talk about classes in Chapter 8, Object-Oriented Programming) work are also processed as expected.

my @a = <10 20 30>;
my @b = @a;

Here, the assignment operator is used twice, first to initialize the @a array, and then to assign its values to the second array, @b.