D.7 Symbol Table Manipulation with *FRED
You can make
b
an alias for
a
with
*b = *a
. This means that
$a
and
$b
refer to the same variable, as do
@a
and
@b
, and even filehandles and formats
a
and
b
. You can also localize
*b
inside a block with
local(*b)
, and that lets you have local filehandles and formats and other things. Pretty fancy stuff, but useful when you need it.
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| D.6 Many, Many Predefined Variables |
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D.8 Additional Regular-Expression Features |