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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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