Introduction

Question 1

what is git?

Answer 1

1. content tracker - tracks all the changes to the code
2. Distributed version control system

Question 2

what is a version control system?

Answer 2

Version control system means, you can go back in time to a previous version of the code since git stored it all

Question 3

Why do we say DISTRIBUTED version control system?

Answer 3

DISTRIBUTED because, we will have a remote repository which will be stored in a server and a local repository which will be stored in the local machine of every developer.
Every developer has full copy of code base

Question 4

What are the two repositories git has?

Answer 4

Local and Remote

Remote repository is usually a centralized server

Question 5

When is a remote repository really useful?

Answer 5

When you want to take a backup of your code and when you are working as a team

Question 6

What are the different stages in local repository?

Answer 6

The local repository actually consists of three stages. The working area, where all your active changes. Git doesn’t know what to do with them yet, it
just knows that these files contain some
updates.
The staging area contains new
changes that will soon be committed,
and then there are the committed files.

Question 7

How is version control added to the project?

Answer 7

By adding commits

Question 8

What is the procedure to commit?

Answer 8

The files that should be included in the
commit are first added to the staging area. A
commit gets created when a developer
actually commits those files.

Question 9

for debian based distros, how do we install a package?

Answer 9

apt get
eg. sudo apt install git-all

Question 10

How to initialize a a git repo?

Answer 10

git init

Question 11

How does git know all of your changes and files?

Answer 11

Although we haven’t done anything with Git
yet, we initialized a Git repository in this
project/directory. so Git knows all of our files and their
changes.

Question 12

What is committing in Git repository?

Answer 12

Storing changes in a local Git repository is called committing. With every commit, we save the current state of the repository

Question 13

What are untracked files in the output of git status?

Answer 13

Untracked files. These are the files that Git
knows of. However, we haven’t told Git what
to do with them. We haven’t told it yet that
we want to add it to our local repository. Eg. Right now, we haven’t told Git what to do with the new
story1 .txt file. It might be that we don’t want
to add that story to our local repository at all.

Question 14

What are the different areas in the local git repository?

Answer 14

1. Working area
   2.staging area
2. committed files area

Question 15

Before committing a file, which area should you put the file in?

Answer 15

Staging area using the git add command

Question 16

What is the command to run to commit the files that are in the staging area?

Answer 16

git commit -m

Question 17

What happens when a new file is added or created in the working directory?

Answer 17

The file is known to be in the working area, and by default it is always untracked first, unless you tell git to track it

Question 18

Which hidden folder gets created after initializing a git repo?

Answer 18

.git

Question 19

Command to configure git username and email , to know who committed etc?

Answer 19

git user.name
git user.email

Question 20

what command to make a file called notes.txt to take it out from git radar, basically we don’t want git to track this file?

Answer 20

echo notes.txt&raquo_space; .gitignore

Question 21

what happens when you add a file to .gitignore for the first time?

Answer 21

.gitignore file itself may be listed as untracked. It is a good practice to track the .gitignore file with git.

Question 22

which command shows information about all the commits?

Answer 22

git log

Question 23

What are all the information you can get from “git log”

Answer 23

1. commit hash
2. Author
3. Date/Time of commit
4. Commit message

Question 24

What is a short way to see the git log, in case you don’t want to see all the details by default git log provides?

Answer 24

git log –oneline

Question 25

“git log” does not list the files that were changed as a part of the commit, how to list the files changed as well?

Answer 25

git log –name-only