[Appendix D] D.7 Symbol Table Manipulation with *FRED
Author: Randal Schwartz, Tom Christiansen & Larry Wall
Date: 1999-07-02T01:37:43Z

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| Appendix D Topics We Didn't Mention |

## 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.

D.6 Many, Many Predefined Variables |  | D.8 Additional Regular-Expression Features