Introduction to GIT

What is GIT?

• Definition: is an open source distributed version control tool

• Features:

  • Code backup
  • version control
  • Collaborative opening
  • Code traceability

• Scenes:

  • Team collaboration open project

• principle:

• Use: (15 commands)

  • Command Line
    

    • Version rollback
      • git reset --hard branch ID roll back to the specified version
      • git reset --hard^ roll back to the previous version
      • git reset --hard~2 roll back 2 versions
      • revert instruction
        • go merge
        • git add
        • git commit
    • Branch switching: used to improve efficiency
    • The relationship between different branches is parallel and will not affect each other
      • Create: git branch branch name
      • Modification: git merge branch name
      • Switch: git checkout branch name
      • Delete: git branch -d branch name
      • View: git branch
    • Code push command
      • Alias ​​definition of remote warehouse: git remote add remote name remote warehouse address
      • Push code: git push -u remote name branch name
    • Code pull
      • Full pull: git clone
      • Incremental pull: git pull

  • tool

    • TortoiseGit
    • IDEA
    • SmartGit [window recommended]
    • SourceTree [mac recommended]

Two ways to connect to remote warehouses

• User and password connection: each time you continue to communicate with the remote, you need to enter the user and password, http protocol address

• SSH password-free login: configure the private key and public key on the servers of both parties, and then use the private key or public key for data encryption for communication between the two parties to ensure the security of data transmission, so there is no need to verify the user password every time, ssh protocol the address of

  View git account

  git config user.name
  

  View git mailbox

  git config user.email
  

  Set local default remote warehouse information

  # 设置用户
  git config --global user.name "胥员员"
  # 设置邮箱
  git config --global user.email "[email protected]"
  

  Check whether the SSH public key has been generated

  cd ~/.ssh
  

  Generate SSH public key

  ssh-keygen -t rsa -C "[email protected]"
  // 注意:此处需要敲3下回车
  

  View public key

  cat ~/.ssh/id_rsa.pub
  

  Public key test

  ssh -T git@gitee.com
  //输入yes
  

  Push to remote warehouse

  git remote add origin git@gitee.com:xu_member/xyy.git
  git push -u origin master