How to turn on Perl warnings? Why is that important?

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Which functions in Perl allows you to include a module file or a module and what is the difference between them?

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while(my($key, $value) = each(%hash) ) { print "$key => $value\n"; } my($key, $value); while(($key, $value) = each(%hash) ) { print "$key => $value\n"; } What is the different between these two code in case of "my" usage ?

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What is epoch time in perl?

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Define perl scripting?

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How to add elements in a hash in perl?

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Explain socket programming in perl?

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What is the difference between localtime() and gmtime() functions?

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When would you not use Perl for a project?

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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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Explain substr function in perl?

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What does this symbol mean '->'?

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