Git Staging and Committing

Question

Explain the Git staging area. What is the difference between git add, git commit, and git push?

Answer

Git has three states: working directory (untracked changes), staging area (changes ready to commit), and repository (committed history). 'git add' moves changes to staging, 'git commit' saves staged changes to local repository, 'git push' uploads commits to remote. This workflow allows selective commits and careful change management.

Why This Matters

The staging area is Git's key feature that separates it from older version control systems. It lets you prepare commits with exactly the changes you want, review before committing, and create atomic commits that represent single logical changes.

Code Examples

Basic Git workflow

bash

Viewing changes

bash

Common Mistakes

Committing without meaningful commit messages
Using 'git add .' without checking what's being staged
Not pulling latest changes before pushing

Follow-up Questions

Interviewers often ask these as follow-up questions

How do you undo the last commit without losing changes?
What is the difference between git reset and git revert?
How do you stage only part of a file's changes?