Emacs - Editor

As developers of software we will edit text files. For this we need a tool called an editor. We have chosen the Emacs with good reason. We are going to create the program files as well as the documentation with it.

We install the emacs package:

sudo snap install emacs

sudo executes the following command as super-user=administrator.

After the installation you can open the editor via the menu Development -> Emacs.

Git - Version Control System

Open Source Software would not work without a system which allows the coordination of the work of many developers working together on a project. Even as an individual you can gain many advantages from it:

• Version control: old versions can be retrieved again
• Distributed repositories: There is no central repository, each copy contains the same information which can be mutually merged.
• https://github.com is the central repository for many software projects, one can search in the projects, contact the creators, engage oneself to improve the software.

As an example of how this can work we want to make a copy of the repository of this project. For this we first navigate with a web browser to the address: https://github.com/nodecum/nodecum-learning. Because it is a public repository you can look at all the files inside it and also see their history. If you click on the green button Code you can select HTTPS and see the URL (web address) of the repository of the repository which you can copy as follows:

git clone https://github.com/nodecum/nodecum-learning.git

With the https protocol you only get read access. If you want to publish your changes you can use the ssl protocol, but you need an account on account on Github.