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Install Perl module using CPAN
How to install Perl module using CPAN. How to include the module in a program?
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PERL Symbol Table
What is Symbol table and how it Works?
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Explain the difference between "my" and "local" variable scope declarations. ?
Both of them are used to declare local variables.The variables declared with "my" can live only within the block it was defined and cannot get its visibility inherited functions called within that block, but one defined with "local" can live within the block and have its visibility in the functions called within that block.