Git

Question 1

1.What does git remote add origin do? 2.Why is this important?

Answer 1

1.It adds a remote server that we back our code up onto when we run git push.
2. Important because we want a back up of the code in case our local system explodes.

Question 2

1.What is the difference between commit and an add? 2.Why do you do one or the other?

Answer 2

1. Add: when we tell git which file we’re ready to put in a commit. It happens first.
2. Commit: we store a snapshot of the added code and directory structure to git, when we’re ready to record the changes we made.

Question 3

What is a timeline?(name pointers that are important in the timeline)

Answer 3

Timeline is many commits. It represents how the files change over time.
-Head: the commit your system is currently emulating
-Branch(main): the most recent commit

Question 4

What does git init do?

Answer 4

Git init initialized a file structure.
Running git init connects a folder to git.
When you hook up a folder to git init, it adds a dot-file containing the snapshots of your code and makes the system come together.

Question 5

What does git add do?

Answer 5

Git add makes a copy of the file in staging.
-For things that are getting ready(staged) for changes
-Each added file is identified by a hash which is calculated from its contents.
-Different file contents = different hash

Question 6

What does git commit do?

Answer 6

Git commit stores these objects in small file system managed by git.
-committing means putting the blobs together into a large objects called commits
- commits keep larger snapshots of the code base such as directory structure.

Question 7

What does “~” mean?

Answer 7

Home

Question 8

What is the default branch name ?

Answer 8

Main

Question 9

What does git status do?

Answer 9

Tells us what’s going on in a folder.

Question 10

What does pushing do to a local repository?

Answer 10

Pushing pushes the entire structure to the remote repository. Or pushes it one change at a time.

Question 11

What does pulling do in the remote repository?

Answer 11

It could either pull the whole repository to go towards the local repository or can pull the changes committed one at a time to the local repository.

Question 12

What does cloning do?

Answer 12

Downloads the entire timeline to go towards the local repository.

Question 13

What does checkout let us do when navigating the commit history with your HEAD.

Answer 13

Checkouts lets us move around in the timeline.

Question 14

True or false?Whatever HEAD points to, The files on the system won’t be identical to those commit.

Answer 14

False. They are identical to those commit.

Question 15

Why do we create many branches in a local repository?

Answer 15

To organize changes

Question 16

What does git fetch do?

Answer 16

Copies remote commit , only the new stuff