What is “grep” function in perl?

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Why do you program in Perl?

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Which of these is a difference between Perl and C++ ?

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you are required to replace a char in a string and store the number of replacements. How would you do that?

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What does `new $cur->{LINK}' do? (Assume the current package has no new() function of its own.)

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package MYCALC; use Exporter; our @EXPORT = (); our @ISA = qw(Exporter); our @EXPORT_OK = qw(addition multi); our %EXPORT_TAGS = (DEFAULT => [qw(&addition)],Both => [qw(&addition & +multi)]); sub addition { return $_[0] + $_[1]; } sub multi { return $_[0] * $_[1]; } 1; Program: use strict; use warnings; my @list = qw (2 2); use Module qw(:DEFAULT); print addition(@list),"\n"; Above coding is my module MYCALC and the program which using this module, I have not exported any function using @EXPORT, but I have used the DEFAULT in %EXPORT_TAGS with the function addition, when I call this function from the main it says the error as,

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Which feature of Perl provides code reusability ? Give any example of that feature.

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How will you open a file in a write-only mode in perl?

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What is the closure in PERL?

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what is CPAN?

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Write syntax to use grep function?

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Explain ivalue in perl?

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