Git for Beginners: Basics and Essential Commands

Imagine five developers working on the same project. No Git. Just folders named final_v2_FINAL_new.zip flying over email.

Someone overwrites someone else's work. Nobody knows what changed. Chaos.

Git fixed this. It tracks every change, by every person, forever.

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Core Concepts

• Repository — Your project's folder, tracked by Git
• Commit — A snapshot of your code at a moment in time
• Branch — A parallel version of your code
• HEAD — Where you currently are in the history

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Essential Commands (With Outputs)

Initialize a Repository

Turn any folder into a Git-tracked project:

git init

Output:

Initialized empty Git repository in /Users/you/my-project/.git/

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Check Status

See what's changed since your last commit:

git status

Output (untracked files):

On branch main
Untracked files:
  (use "git add <file>..." to include in what will be committed)
        index.html
        style.css

nothing added to commit but untracked files present

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Stage Files

Tell Git which files to include in the next snapshot:

git add index.html        # Stage one file
git add .                 # Stage everything

Now check status again:

git status

Output (staged files):

On branch main
Changes to be committed:
  (use "git restore --staged <file>..." to unstage)
        new file:   index.html
        new file:   style.css

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Commit Changes

Save a snapshot with a message:

git commit -m "Add homepage and styles"

Output:

[main 3a4b5c6] Add homepage and styles
 2 files changed, 45 insertions(+)
 create mode 100644 index.html
 create mode 100644 style.css

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View History

See all commits:

git log --oneline

Output:

3a4b5c6 Add homepage and styles
1d2e3f4 Initial commit

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Create a Branch

Work on features without touching main code:

git branch feature-navbar
git checkout feature-navbar

Or do both in one command:

git checkout -b feature-navbar

Output:

Switched to a new branch 'feature-navbar'

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Merge Branches

Done with your feature? Merge it back:

git checkout main
git merge feature-navbar

Output:

Updating 3a4b5c6..7d8e9f0
Fast-forward
 navbar.html | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

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The Workflow

git init          # Once per project
git status        # Check what changed
git add .         # Stage changes
git commit -m ""  # Save snapshot
git log           # View history

Initialize → Make changes → Stage → Commit → Repeat.

That's it. Every professional developer follows this loop daily.

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Git isn't just a tool. It's your safety net. Learn it once, use it forever.

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