What is the importance of perl warnings? How do you turn them on?

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Explain the meaning of subroutine?

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You want to open and read data files with perl. How would you do that?

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Which guidelines by Perl modules must be followed?

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What is the purpose of goto expr statement?

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Packing and Unpacking. Hi, I want to get output as 0x23400000345.... in the below example How to get? i tried out, but unable to get the answer $r=0x234; $t=0x345; $y=pack('L L',$t,$r); $x1=unpack('L!',pack('P',$y)); printf("\nThe value is $x1"); I didn't get constant output

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How and what are closures implemented in perl?

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What is warn function in perl?

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What is q (single q) operator in perl?

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Define print() function in perl?

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Which functions in perl allows you to include a module file.

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“Perl regular expressions match the longest string possible”. What is the name of this match?

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