How do variables, operators, and expressions work in Perl?

Variables, operators, and expressions are fundamental components of Perl programming, playing a crucial role in manipulating data and performing computations. Here is an in-depth explanation of how these elements work in Perl: Variables: * In Perl, variables are used to store and manipulate data. They provide a way to assign values to memory locations and refer to them using variable names. * Perl variables are declared using a sigil followed by the variable name. The sigils indicate the variable's context: + $ for scalar variables: Scalars hold single values such as numbers, strings, or references. + @ for array variables: Arrays store ordered lists of values. + % for hash variables: Hashes store key-value pairs. Operators: * Perl supports a wide range of operators, categorized into different types: 1. Arithmetic Operators: * Addition (+), subtraction ....