
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Mohd Mohtashim has Published 238 Articles

Mohd Mohtashim
208 Views
A scalar is a single unit of data. That data might be an integer number, floating-point, a character, a string, a paragraph, or an entire web page.Here is a simple example of using scalar variables −Example Live Demo#!/usr/bin/perl $age = 25; # An integer ... Read More

Mohd Mohtashim
494 Views
Perl treats the same variable differently based on Context, i.e., the situation where a variable is being used. Let's check the following example −Example Live Demo#!/usr/bin/perl @names = ('John Paul', 'Lisa', 'Kumar'); @copy = @names; $size = @names; print "Given names are : @copy"; print "Number of names are : ... Read More

Mohd Mohtashim
316 Views
A hash is a set of key/value pairs. Hash variables are preceded by a percent (%) sign. To refer to a single element of a hash, you will use the hash variable name followed by the "key" associated with the value in curly brackets.Here is a simple example of using ... Read More

Mohd Mohtashim
265 Views
An array is a variable that stores an ordered list of scalar values. Array variables are preceded by an "at" (@) sign. To refer to a single element of an array, you will use the dollar sign ($) with the variable name followed by the index of the element in ... Read More

Mohd Mohtashim
228 Views
A scalar is a single unit of data. That data might be an integer number, floating-point, a character, a string, a paragraph, or an entire web page. Simply saying it could be anything, but only a single thing.Here is a simple example of using scalar variables −Example Live Demo#!/usr/bin/perl $age = ... Read More

Mohd Mohtashim
201 Views
Perl variables do not have to be explicitly declared to reserve memory space. The declaration happens automatically when you assign a value to a variable. The equal sign (=) is used to assign values to variables.Keep a note that this is mandatory to declare a variable before we use it ... Read More

Mohd Mohtashim
843 Views
Strings are sequences of characters. They are usually alphanumeric values delimited by either single (') or double (") quotes. They work much like UNIX shell quotes where you can use single-quoted strings and double-quoted strings.Double-quoted string literals allow variable interpolation, and single-quoted strings are not. There are certain characters when ... Read More

Mohd Mohtashim
373 Views
Perl stores all the numbers internally as either signed integers or double-precision floating-point values. Numeric literals are specified in any of the following floating-point or integer formats −TypeValueInteger1234Negative integer-100Floating point2000Scientific notation16.12E14Hexadecimal0xffffOctal0577

Mohd Mohtashim
299 Views
Perl is a loosely typed language and there is no need to specify a type for your data while using it in your program. The Perl interpreter will choose the type based on the context of the data itself.Perl has three basic data types: scalars, arrays of scalars, and hashes ... Read More

Mohd Mohtashim
630 Views
Perl borrows syntax and concepts from many languages: awk, sed, C, Bourne Shell, Smalltalk, Lisp, and even English. However, there are some definite differences between the languages. This chapter is designed to quickly get you up to speed on the syntax that is expected in Perl.A Perl program consists of ... Read More