Git Basics

What is Git?

: Distributed Version Control System (DVCS)

Centralized version control diagram

Git Main Commands

1. Create Git repository - git init

git init

2. Git version management - git status

• You must continuously check what the current state of git is!

• The most important git command!

$ git status
On branch master

# No commits yet (no version history)
No commits yet

# Changes to be committed
Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

$ git add .
$ git status
On branch master

No commits yet

# Changes to be committed
Changes to be committed:
 # To unstage, use the command below...
  (use "git rm --cached <file>..." to unstage)
        # This is a new file a.txt.
        new file:   a.txt

$ git commit -m 'Init'
[master (root-commit) ebd83a4] Init
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 a.txt
 
$ git status
On branch master
# Nothing to commit, working tree clean.
nothing to commit, working tree clean

$ git log --oneline
ebd83a4 (HEAD -> master) Init

+

Remote Repository

• Register remote repository

  • Git, add to remote repository with the name origin and url

  git remote add origin {url}

  git remote -v

• push

  git push origin master

• pull

  git pull origin master

Clone Remote Repository

git clone {url}

• The clone command doesn't play the role of pull, but the role of init

  • Ways to initialize repository locally

    • git init - Use specific folder as repository

    • git clone - Clone specific remote repository