KTU FOSS LAB - Dr Binu V P

What is version control Version control systems are a category of software tools that help a software team manage changes to source code over time. Version control software keeps track of every modification to the code in a special kind of database. If a mistake is made, developers can turn back the clock and compare earlier versions of the code to help fix the mistake while minimizing disruption to all team members. For almost all software projects, the source code is like the crown jewels - a precious asset whose value must be protected. For most software teams, the source code is a repository of the invaluable knowledge and understanding about the problem domain that the developers have collected and refined through careful effort. Version control protects source code from both catastrophe and the casual degradation of human error and unintended consequences. Software developers working in teams are continually writing new source code and changing existing source code. ...

What is Git By far, the most widely used modern version control system in the world today is Git. Git is a mature, actively maintained open source project originally developed in 2005 by Linus Torvalds, the famous creator of the Linux operating system kernel. A staggering number of software projects rely on Git for version control, including commercial projects as well as open source. Developers who have worked with Git are well represented in the pool of available software development talent and it works well on a wide range of operating systems and IDEs (Integrated Development Environments). Install Git on Linux Debian / Ubuntu (apt-get) Git packages are available via apt: From your shell, install Git using apt-get: $ sudo apt-get update $ sudo apt-get install git Verify the installation was successful by typing git --version: $ git --version git version 2.9.2 Configure your Git username and email using the following commands, $ git conf...

LINUX APACHE MYSQL PHP LAMP is an archetypal model of web service stacks, named as an acronym of the names of its original four open-source components: the Linux operating system, the Apache HTTP Server, the MySQL relational database management system (RDBMS), and the PHP programming language. The LAMP components are largely interchangeable and not limited to the original selection. As a solution stack, LAMP is suitable for building dynamic web sites and web applications. Since its creation, the LAMP model has been adapted to other componentry, though typically consisting of free and open-source software. For example, an equivalent installation on the Microsoft Windows family of operating systems is known as WAMP and an equivalent installation on macOS is known as MAMP. Step 1: Install Apache Apache is a free open source software which runs over 50% of the world’s web servers. To install apache, open terminal and type in these commands: sudo apt-get update sudo apt-get inst...

Ubuntu and other Linux distributions have extensive package repositories to save you the trouble of compiling anything yourself. Still, sometimes you’ll find an obscure application or a new version of a program that you’ll have to compile from source. You don’t have to be a programmer to build a program from source and install it on your system; you only have to know the basics. With just a few commands, you can build from source like a pro. Installing the Required Software Installing the build-essential package in Ubuntu’s package repositories automatically installs the basic software you’ll need to compile from source, like the GCC compiler and other utilities. Install it by running the following command in a terminal:     $sudo apt-get install build-essential Getting a Source Package Now you’ll need your desired application’s source code. These packages are usually in compressed files with the .tar.gz or .tar.bz2 file extensions. As an example, le...

In few words, package management is a method of installing and maintaining (which includes updating and probably removing as well) software on the system. In the early days of Linux, programs were only distributed as source code, along with the required man pages, the necessary configuration files, and more. Nowadays, most Linux distributors use by default pre-built programs or sets of programs called packages, which are presented to users ready for installation on that distribution. However, one of the wonders of Linux is still the possibility to obtain source code of a program to be studied, improved, and compiled. if a certain package requires a certain resource such as a shared library, or another package, it is said to have a dependency. All modern package management systems provide some method of dependency resolution to ensure that when a package is installed, all of its dependencies are installed as well. Almost all the software that is installed on a modern Linux syst...