Git is a distributed version control system used to track changes in files and source code. It helps developers manage different versions of a project and work together efficiently.
Git is a tool that records changes made to files in a project. It allows developers to save different versions of their work.
For example, if you are developing a website, Git can keep track of changes made to HTML, CSS, JavaScript and other files.
git --versionWithout version control, it can become difficult to know what changed in a project and when the change was made.
Git helps you:
Git is a Version Control System (VCS). A VCS records changes to files over time.
This allows developers to see the history of a project and return to an earlier version when required.
Git keeps a history of changes made to tracked files.
For example, suppose you initially create:
<h1>My Website</h1>Later, you change it to:
<h1>My Personal Website</h1>Git can help you keep track of this change.
Git maintains a history of committed changes. Each commit represents a saved point in the project.
You can inspect this history using:
git logA repository, commonly called a repo, is a location where Git stores information about a project and its version history.
A repository can contain source code, configuration files, documentation and other project files.
A local repository exists on your own computer. You can create one using:
git initAfter running this command, Git creates a hidden .git directory.
The .git directory contains important information used by Git to manage the repository.
You should normally avoid manually changing files inside this directory.
The working directory is the area where you create and edit project files.
For example:
my-project/
index.html
style.css
script.jsThe staging area is used to select changes that will be included in the next commit.
You can add a file to the staging area using:
git add index.htmlTo add all changed files:
git add .A commit is a saved snapshot of the staged changes in a Git repository.
Example:
git commit -m "Add homepage"The message describes what was included in the commit.
A basic Git workflow is:
git status
git add .
git commit -m "Save changes"The git status command shows the current state of your working directory and staging area.
git statusIt can show modified files, untracked files and staged changes.
The git log command displays the commit history.
git logThe history can contain commit IDs, authors, dates and commit messages.
Git is a distributed version control system. A complete repository can exist on each developer's computer.
This makes it possible to work on a project locally without requiring a constant connection to an online server.
Many Git operations can be performed without an internet connection.
For example, you can create commits, view history and create branches locally.
git add .
git commit -m "Local changes"Git is widely used for software development projects. It can track source code written in languages such as:
Git allows multiple developers to work on the same project. Developers can create branches, make changes and merge their work.
This makes Git useful for both individual and team projects.
A branch provides an independent line of development. It can be used to work on a feature without directly changing the main branch.
git branch feature-loginGit and GitHub are related but they are not the same thing.
Git is version control software. GitHub is an online platform that hosts Git repositories and provides collaboration features.
A remote repository is a Git repository stored on another computer or online service.
A remote can be viewed using:
git remote -vThe git push command sends local commits to a remote repository.
git push origin mainHere, origin is commonly used as the name of the remote repository.
The git pull command gets changes from a remote repository and integrates them into the current branch.
git pull origin mainThe git clone command creates a local copy of an existing remote repository.
git clone https://example.com/project.gitAfter cloning, you can work with the repository on your computer.
Git allows you to configure information such as your name and email.
git config --global user.name "Your Name"
git config --global user.email "you@example.com"This information is associated with your commits.
Git is open-source software. Its source code is publicly available, and developers can use Git without purchasing a proprietary Git license.
Some commonly used Git commands are:
git init
git status
git add .
git commit
git log
git branch
git switch
git merge
git pull
git push
git cloneA simple project workflow can look like this:
mkdir my-project
cd my-project
git init
git add .
git commit -m "Initial commit"This creates a Git repository and records the first commit.
To learn Git effectively, start with basic commands and then move towards branches, merging and remote repositories.
In the upcoming lessons, we will learn Git commands step by step and then work with GitHub.
Question: What is Git?