We start the system console (which is also called “terminal window” or “command prompt“). Then, we clone the sample repository to a local directory, using the “git clone” command.

git clone https://github.com/SoftUni/playground

That will create a local copy of the specified repository in the “playground” subdirectory in the current directory.

Now we modify а local file, for example, the file “README.md“. We can use a text editor of choice, such as “Notepad“. We can open the file with Notepad by typing the following command:

notepad README.md

After you add a new line in the file, save it. Now we have a modified file on the local disk. The changes are only made on your local device. If we want to add the changes to the local repository, we type the following command on the command prompt:

git add . & git commit -m “Added something”

We now have a local repository that holds changes. They are still not sent to GitHub. To send the local commits to the remote repository at GitHub, we can execute the following command:

git push

This command needs the current Git user to have permission to write on the remote repository. It may ask for your username and password for authentication. If you are not registered yet, you can do it from here.

After the command compiles successfully, we can open the repository from the GitHub website and see the changes. We can also review the commits history. GitHub stores all the commits and we will know if someone deletes our changes.