What does undef function in perl?


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More CGI Perl Interview Questions

What is the use of '>>' in perl?

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How to find the length of an array in perl?

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What can be done for efficient parameter passing in perl? Explain.

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What is the use of 'ne' operator?

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In Perl, there are some arguments that are used frequently. What are that arguments and what do they mean?

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How to remove a directory in perl?

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What is the difference between use and require in perl?

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What does delete function do in perl?

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Define say() function in perl?

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If EXPR is an arbitrary expression, what is the difference between $Foo::{EXPR} and *{"Foo::".EXPR}?

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How do I print the entire contents of an array with Perl?

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What are the arguements we normally use for perl interpreter?

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