No, you can't "just say" that

$foo=$bar;
@foo=@bar;
%foo=%bar;
[download]

and

*foo = *bar;
[download]

are equivalent. The first set of assignments sets $foo, @foo and %foo from the values of $bar, @bar and %bar, and that's it. If you later assign to $bar or $bar [3], $foo and $foo [3] remain unchanged. However, with the glob assignment, $foo, @foo and %foo become aliases for $bar, @bar and %bar. Modifications of the one are reflected in the other.

-- Abigail