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Git

Git

In depth

Tool

Distributed version control system. Tracks every change to your code and makes collaboration possible.

Git, explained

Written by EduVerse

What it is

Git is a version control system: a tool that records snapshots of your project, called commits, so you can see what changed, when and by whom. It’s distributed, which means every developer’s copy holds the full history. Branches let you work on a feature separately and merge it back when it’s ready.

Why teams use it

Without version control, people overwrite each other’s work and keep folders like final_v2_really_final. Git lets a whole team work on the same code in parallel, review changes before they land, and go back to any earlier version when something breaks. Older centralized systems like Subversion needed a server for many actions; Git also works offline.

An example from work

You run git pull to get your teammates’ latest work and Git stops with “CONFLICT (content): Merge conflict in src/App.js”. In that file you find markers like <<<<<<< HEAD around two versions of the same lines. You keep the right code, delete the markers, then run git add and commit.

Our own explanation, not a quote from the book.

In the book

Sentences from The Software Realm, Decoded that mention Git, exactly as printed.

  • The Senior developer, from the book cover
    Senior developer
    “But then you’d miss the entire Git history, the branches, the ability to pull updates, and you’d have to manually download every time something changes.”
    Chapter 1 · 1.2 The Terminal: Your Gateway to Everything · p. 23Open in the free preview
  • What they say
    “Open a terminal and run this command.”
    What they mean
    Open the text-based interface (Terminal on Mac/Linux, PowerShell or Git Bash on Windows) and type exactly what I’m about to show you, then press Enter.
    Chapter 1 · 1.2.1 What Is the Terminal, Really? · p. 24Open in the free preview
  • The Senior developer, from the book cover
    Senior developer
    “Windows developers use WSL or Git Bash to get Linux commands.”
    Chapter 1 · 1.2.4 Why Linux Matters (Even on Mac and Windows) · p. 25Open in the free preview
  • Peter, from the book cover
    Peter
    “So Git is the tool, GitHub is where I back it up?”
    Chapter 1 · 1.3.2 Git Is Not GitHub · p. 28Open in the free preview
  • What they say
    “Stage your changes before committing.”
    What they mean
    Tell Git which files you want to include in this save point using git add, then create the save point with git commit.
    Chapter 1 · 1.3.3 Repositories, Commits, and Branches · p. 29Open in the free preview

2 more mentions in the book.

1 more passages about Git in the full book

Read every conversation where Git comes up, with the interactive slides and demos.

See the book

Where it fits

Version control, branching, collaboration through pull requests

Coverage in the book

In depth

Covered in depth: multiple pages with explanations, examples and simulations.

Appears in