Getting Started

Question 1

Create a new repository in the current directory

Answer 1

git init

Question 2

Create an empty repository in a new directory

Answer 2

git init

Question 3

Initialize an empty Git repository in a new folder, but omit the working directory.

Answer 3

git init –bare

Question 4

Clone a specific git repository to the current directory

Answer 4

git clone

Question 5

Clone a specific git repository to a specified local directory

Answer 5

git clone

Question 6

Define the author name to be used for all commits in the current repository

Answer 6

git config –global user.name

Typically, you’ll want to use the –global flag to set configuration options for the current user

Question 7

Define the author email to be used for all commits by the current user.

Answer 7

git config –global user.email

Question 8

Create a shortcut for a Git command.

Answer 8

git config –global alias.

Question 9

Define the text editor used by commands like git commit for all users on the current machine

Answer 9

git config –system core.editor

The argument should be the command that launches the desired editor (e.g., vi).

Question 10

Open the global configuration file in a text editor for manual editing

Answer 10

git config –global –edit

Question 11

Stage all changes in for the next commit.

Answer 11

git add

Question 12

Stage all changes in for the next commit.

Answer 12

git add

Question 13

Begin an interactive staging session that lets you choose portions of a file to add to the next commit.

Answer 13

git add -p

This will present you with a chunk of changes and prompt you for a command. Use y to stage the chunk, n to ignore the chunk, s to split it into smaller chunks, e to manually edit the chunk, and q to exit.

Question 14

Create an initial commit of the current directory

Answer 14

git add .

git commit

Question 15

Add a file to the repository and commit the addition

Answer 15

git add hello.py

git commit

Question 16

Commit the staged snapshot

Answer 16

git commit

This will launch a text editor prompting you for a commit message. After you’ve entered a message, save the file and close the editor to create the actual commit. git commit -m “”

Question 17

Commit a snapshot of all changes in the working directory only including modifications to tracked files (those that have been added with git add at some point in their history)

Answer 17

git commit -a

Question 18

Return to the master branch

Answer 18

git checkout master

Question 19

Check out a previous version of a file

Answer 19

git checkout

This turns the that resides in the working directory into an exact copy of the one from and adds it to the staging area.

Question 20

git checkout

Answer 20

git checkout

Update all files in the working directory to match the specified commit. You can use either a commit hash or a tag as the argument. This will put you in a detached HEAD state

Question 21

Get a list of the previous commits (with one line descriptions)

Answer 21

git log –oneline

Question 22

Checkout a single of a commit

Answer 22

git checkout

Question 23

Undo a committed snapshot.

Answer 23

git revert

Instead of removing the commit from the project history, it figures out how to undo the changes introduced by the commit and appends a new commit with the resulting content. This prevents Git from losing history, which is important for the integrity of your revision history and for reliable collaboration