Scalar Variables

$a = 15;

$a = $a + 10;

$b = $a + 5;

Strings can be concatenated with a "."

$name = "fred";

$name = "fred" x 3; # "fredfredfred"

$name = "fred\tbarney"; # "fred barney"

$a = "fred" . "barney"; # "fredbarney"

$b = $a . "wilma"; # "fredbarneywilma"

$a = "Fred and " . $b; # "Fred and wilma"

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