Chapter-1: Perl programming language introduction

Perl is a programming language  was developed by Larry Wall. Perl language especially used for text processing on Linux, UNIX, Mac OS & Windows operating systems. Full form of PERL is Practical Extraction and Report Language. Because Perl’s is an interpreted language, so your perl code runs without compilation. Perl language

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Chapter-1 : Java Classes and Objects Introduction

Java is an Object-Oriented Language. As a language that has the Object Oriented feature, Java supports the following fundamental concepts: Polymorphism Inheritance Encapsulation Abstraction Classes Objects Instance Method Message Parsing In this chapter, we will look into the concepts Classes and Objects. Object – Objects have states and behaviors. Example:

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IBM DB2 Installation on Red Hat Enterprise Linux

IBM DB2 database can be installed on Linux, UNIX or Window operating systems. We are going to install DB2 Version 10.1 on Red Hat Enterprise Linux Server from command interface. IBM DB2 is a next generation data platform for transactional and analytical operations. Step 1 : Download IBM DB2 Package

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Difference between absolute and relative paths in Linux

Absolute Pathnames An absolute pathname begins with a slash (/). The Absolute path defines the location of a Directory or a file from the root file system (/). The absolute path contains the full path to the directory or file. Examples of Absolute Path /usr/share/doc    (Absolute path for a Directory)

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How to Upgrade Mozilla firefox on Ubuntu?

By default, Mozilla Firefox automatically update itself but you can also do a manual update. You can update your firefox by following steps. Method : 1 First go to your Application Launcher of Ubuntu menu. Follow complete path as given below. Applications –> System Tools –> Administration –> Software Updater

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Apache Tomcat Installation and configuration Steps on Linux

Apache Tomcat is fully compatible with Redhat, CentOS, Ubuntu & other major Linux distributions. We are going to install Apache tomcat on Redhat Linux. Step 1 Download Latest version tomcat from [root@Server var]# cd /var [root@Server var]# wget Step 2 Download JDK for Java environment [root@Server var]# wget

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Understanding Linux Processes from the Scratch Part-2

In Our Last article “Understanding Linux Processes from the Scratch Part-1” we have discussed about Linux Process and listing of linux process via different command like ps, top, htop & atop. In this post we will discuss more about the Linux Process like Determining Processes by Ownership Process States Process

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Understanding Linux Processes from the Scratch Part-1

Overview : A process is created in memory when a program or command is initiated. A unique identification number, known as the process identification (PID), is assigned to it and is used by the kernel to manage the process until the program or command it is associated with terminates. For

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