home | O'Reilly's CD bookshelfs | FreeBSD | Linux | Cisco | Cisco Exam    

D.7 Symbol Table Manipulation With *FRED

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.


Previous: D.6 Many, Many Predefined Variables Learning Perl on Win32 Systems Next: D.8 Additional Regular Expression Features
D.6 Many, Many Predefined Variables Book Index D.8 Additional Regular Expression Features











??????????????@Mail.ru