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Appendix D Topics We Didn't Mention |
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You can make
b
an alias for
a
with
*b = *a
. This statement 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)
, letting you have local filehandles, 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 |