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Git Basics (Beginner)

What is Git?

  • Git is a tool to track changes in files
  • It helps you:
    • Save your work (history)
    • Work in branches
    • Share changes with others

4 commands you will use the most

1) Check status

  • See what changed:

    git status

2) See changes

  • View file changes:

    git diff

3) Stage changes

  • Pick what goes into the commit:

    git add .

  • Or add one file:

    git add docs/git-basics.md

4) Commit changes

  • Save a snapshot with a message:

    git commit -m "Explain git add and commit"

Branches (simple)

  • A branch is your own “work lane”

  • Create a branch:

    git checkout -b my-branch-name

  • Switch back to main:

    git checkout main

Push (send changes to GitHub)

  • First push for a new branch:

    git push -u origin my-branch-name

Pull (get updates from GitHub)

  • If upstream is set:

    git pull

A tiny example flow

  • git status
  • Edit a file
  • git add .
  • git commit -m "Update instructions"
  • git push

Common mistakes

  • “Nothing to commit”
    • You forgot git add
  • “Rejected / failed to push”
    • Your branch is behind
    • Try git pull then push again

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