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What does length(%HASH) produce if you have thirty-seven random keys in a newly created hash?


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More CGI Perl Interview Questions

Explain about the applications of perl?

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How many types of operators are used in the Perl?

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How do find the length of an array?

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Consider the following example #! /bin/perl use strict; sub sample { my @arr=(1,2,3,4); return @arr; } my ($a,$b,$c,$d) = &sample; print "$a\n$b\n$c\n$d\n"; In the above code, How can I get the $c without using the arguments such as $a,$b. I don't want to use any array to get the return values.

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What is warn function in perl?

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

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What are the advantages of perl programming?

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What does read () command do?

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If you want to empty an array then how would you do that?

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List the prefix dereferencer in Perl.

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What are the advantages of programming in perl?

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