Git: An Introduction to Installation and Configuration

Git introduction?

Git is a free and open-source distributed version control system that is designed to handle everything from small to very large projects with speed and efficiency. It is used by millions of developers around the world to collaborate on software projects.

Git is a distributed version control system, which means that you can work on your code without having to connect to a central server. This makes it very easy to collaborate with others, even if they are not on the same network as you.

Benefits of git

• Efficiency: With its remarkable efficiency in tracking code changes, Git enables swift and seamless management of your codebase or merge changes from another branch.
• Reliability: The extensive usage and community support make it highly unlikely for you to experience any code loss, providing you with added confidence in the integrity and security of your codebase.
• Flexibility: It’s a very flexible version control system. You can use it to track any type of file, and you can customize it to meet your specific needs.

How to install git?

Here are the steps on how to install Git on your local computer:

Ubuntu

• Open the terminal by pressing Ctrl+Alt+T.
• Update the package list by typing

sudo apt-get update

• Install Git by typing

sudo apt-get install git

Windows

• Download the Git for Windows installer from the official Git website: Download here.
• Run the installer and follow the instructions in the setup wizard.
• When prompted, select the default options or choose your preferred settings.

macOS

• Open the Terminal app from Applications > Utilities > Terminal.
• Install Homebrew by entering the following command in the terminal

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

• Install Git by entering the following command in the terminal.

brew install git

Once Git is installed, you can verify the installation by typing

git --version

How to configure username, and email globally and in specific repositories?

git config --global user.name "Your Name"
git config --global user.email "your.name@example.com"

These commands will set your username and email to the values you specify. This will be used for all Git operations that you perform on your computer.

You can also configure your username and email for a specific repository. To do this, you can use the following commands:

cd /path/to/repository
git config user.name "Your Name"
git config user.email "your.name@example.com"

These commands will set your username and email for the specific repository that you are currently in.

NOTE: you can only have one username and email configured globally. If you want to use a different username or email for a specific repository, you will need to configure it for that repository specifically.

Here are some additional details about the git config command:

• The --global the option tells Git to set the configuration for all repositories on your computer.
• The user.name and user.email options tell Git your username and email address.
• You can use any value for your username and email address, but it is best to use a value that is consistent with your other online identities.

How to configure the editor globally and in specific repositories?

git config --global core.editor "vim"

You can use any text editor that you want as your default editor. Just make sure to specify the full path to the editor executable.

You can also configure the default editor for a specific repository. To do this, you can use the following command.

cd /path/to/repository
git config core.editor "vim"

This will set the default editor for the specific repository that you are currently in.

NOTE: It is important to note that you can only have one default editor configured globally. If you want to use a different default editor for a specific repository, you will need to configure it for that repository specifically.

Here are some additional details about the git config command.

• The --global the option tells Git to set the configuration for all repositories on your computer.
• The core.editor the option tells Git the path to the default editor.
• You can use any value for the core.editor option, but it is best to use a value that is the path to a text editor that you are familiar with.

How to change the default branch name?

You can change your default branch name following this command.

git config --global init.defaultBranch <new_branch_name>

This will change the default branch name for all new repositories that you create. You can also change the default branch name for an existing repository by using the following command.

cd /path/to/repository
git config init.defaultBranch <new_branch_name>

NOTE: It is crucial to bear in mind that you can have only one globally configured default branch. In case you wish to utilize a different default branch for a particular repository, it is necessary to configure it specifically for that repository.

Here are some additional details about the git config command.

• The --global the option tells Git to set the configuration for all repositories on your computer.
• The init.defaultBranch the option tells Git the name of the default branch.
• You can use any value for the init.defaultBranch option, but it is best to use a value that is descriptive of the purpose of the branch.

After completing all configuration you can check the settings by following this command.

• You can use the git config --list command to see a list of all of your configured Git settings.
• You can use the git config --edit command to open a text editor where you can make changes to your Git settings.