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What Is Git and Why Use It?
Git is a version control system that tracks every change so you can collaborate and undo safely.
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AiTechWorlds
AiTechWorlds
Git is a version control system that tracks code changes, and GitHub is a platform for hosting and collaborating on Git repositories. This visual guide covers commits, branches, merging, pull requests, remotes, and everyday Git workflows.
Git is a version control system that tracks every change so you can collaborate and undo safely.
Git is the tool on your computer; GitHub is the cloud platform that hosts Git repositories.
A repository (repo) is a project folder whose entire change history Git tracks.
init starts tracking, add stages changes, and commit saves a snapshot.
Changes move from your working directory to staging, then into the repository on commit.
A commit is a saved snapshot of your project with a message describing the change.
Branches let you work on features in isolation without affecting the main code.
Merging combines the changes from one branch into another.
A conflict happens when two branches change the same lines, requiring manual resolution.
push uploads commits to the remote; pull downloads and merges remote changes.
A remote is a hosted copy of your repo, like the one on GitHub.
Cloning downloads a full copy of a remote repo to your computer.
A pull request proposes merging your branch and lets others review the changes.
status shows current changes; log shows the commit history.
reset moves the branch pointer; revert creates a new commit that undoes a previous one.
.gitignore tells Git which files to skip, like secrets and build output.
Forking copies a repo to your own account; cloning downloads a repo locally.
stash temporarily shelves uncommitted changes so you can switch context.
Committing secrets, force-pushing shared branches, and giant commits cause problems.
Commit small and often, write clear messages, branch per feature, and review before merging.
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