Complete Git Guide: Understand and Master Git and GitHub - Git diff Command

This video tutorial explains the Git diff command, demonstrating how to make changes in files using Visual Studio Code and view differences between file versions. It covers understanding the output of Git diff, including SHA-1 hashes and Git objects, and explains how Git only creates new blobs after committing changes. The tutorial also details how to interpret Git diff sections and commit changes effectively, emphasizing the importance of using tools like GitHub Desktop for a more intuitive understanding of file changes.

What is the initial state of the project in the Hello World example?

• The project has uncommitted changes.

• The project is in a new branch with no changes.

• The project has been deleted.

• The project is in the master branch.

Which tool is used to make changes to the file in the demonstration?

• Sublime Text

• Atom

• Visual Studio Code

• Notepad++

What command is used to check the status of the project?

• git log

• git branch

• git status

• git init

What does the Git diff command show?

• The list of all branches

• The differences between the working directory and the index

• The differences between two branches

• The commit history

What does a SHA-1 hash represent in Git?

• A unique identifier for a repository

• A unique identifier for a commit

• A unique identifier for a file

• A unique identifier for a branch

In the Git diff output, what does the prefix 'A' indicate?

• A new file

• An old file

• A deleted file

• An unchanged file

What does the line 'add add -3,6 +3,8' signify in the Git diff output?

• The line numbers in the old and new files

• The number of commits

• The number of lines added and removed

• The number of files changed

What is the purpose of using GitHub Desktop in the demonstration?

• To merge branches

• To delete a branch

• To visualize the changes made

• To create a new repository

What happens when changes are committed in Git?

• The working directory is reset

• New branches are created

• New blobs are created in the repository

• The repository is deleted

What is the main takeaway from the lecture on Git diff?

• Git diff deletes untracked files

• Git diff is used to merge branches

• Git diff shows the entire file content

• Git diff highlights only the changed sections