Perl Training Course in Pondicherry

The power of Perl can be implemented in many fields. The most popular use of Perl is in Web development., Perl is also used to automate many tasks in the Web servers, and other administration jobs, it can automatically generate emails and clean up systems. Perl is still used for its original purpose i.e. extracting data and generating reports.

Now, we'll talk about variables. You can imagine variable like kind of container which holds one or more values. Once defined, the name of variable remains the same, but the value or values change over and over again.

An Array is a special type of variable which stores data in the form of a list; each element can be accessed using the index number which will be unique for each and every element. You can store numbers, strings, floating values, etc. in your array.

A hash can also hold as many scalars as the array can hold. The only difference is we don't have any index rather we have keys and values. A hash can be declared, starting with % followed by the name of the hash. Let's see an example how we can define a Perl hash and how we can differentiate this from array

We can use conditional Statements in Perl. So, what are conditional statements? Conditional statements are those, where you actually check for some circumstances to be satisfied in your code.

Perl supports control structures similar to other programming languages. Perl supports four types of control structures for, foreach, while and until. We use these statements to, repeatedly execute some code.

Operators in computer language indicate an action that can be performed on some set of variables or values which computer can understand. Perl has incorporated most of the Operators from C language. Perl has many operators compared with other programming languages. Operators are categorized as Arithmetic, Logical, relational and assignment operators.

Special variables in Perl are those who have some predefined meaning. These variables denoted with either real Name or Punctuation symbols. We have a special variable for all the Perl supported Variables like scalar special variables, Array special variables, hash special variables. Most of the special variables that we use are of scalars.