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Download and Install GIT & First time set up GITHub

Download GIT

Download for macOS

There are several options for installing Git on macOS. Note that any non-source distributions are provided by third parties, and may not be up to date with the latest source release.

Homebrew

  • Install homebrew if you don't already have it, then: 
    $ brew install git

SignUP GITHub

  • Navigate to the URL
  • Click on SingUp button
  • Follow the Instruction
  • Log into the GithHib Account
  • Click on plus(+) icon uper-right hand corner to create a new repository
  • Enter Repository Name
  • Select Public/Private
  • Click on the Create repository button

Clone the GitHub Repository

  • After log into the GitHub
  • Click on profile (photo) icon uper-right hand corner
  • Click on Your Repository
  • Click on the specific repository which you want to clone it
  • Click on the "Code" button
  • Copy SSH url
  • Navigate to the Terminal or CMD Commnad Prompt
  • Change Directory where you want to place the project
  • Import into Eclipse/intellij or Drag & Drop into the Editors
  • Start writing code

GIT Basic Command

Getting and Creating Projects

> git init (Create an empty Git repository or reinitialize an existing one)
> git clone (Clone a repository into a new directory)

Basic Snapshotting

> git add (Add file contents to the index)
> git add . (Add all untracted file contents to the index)
> git status (Show the working tree status)
> git add index.html
> git commit -m "Some meaningful Message" (Record changes to the repository)
> git rm (Remove files from the working tree and from the index)
> git mv (Move or rename a file, a directory, or a symlink)

Branching and Merging

> git branch (List, create, or delete branches)
> git checkout -b "branchName" (Create a new branch)
> git checkout branchName (Switch to branch)
> git branch -d branch_name (delete branch)
> git branch --delete --force
> git stash (This will stash your changes and clear your status report)

Sharing and Updating Projects

> git fetch (You can do this command at any time to update your remote-tracking branches)
> git pull (This will pull changes from upstream branch)
> git push (Update remote refs along with associated objects)
> git push <remote_name> --delete <branch_name> (Delete a remote GIT branch)
> git push <remote_name> :<branch_name>
> git remote add origin git@github.com:peter/first_app.git

Inspection and Comparison

> git log (Show commit logs)
> git diff (Show changes between commits, commit and working tree, etc)

Patching

> git cherry-pick (Cherry picking in Git means to choose a commit from one branch and apply it onto another.)
> git rebase (: git rebase -i master: Clean up the history of your dev branch with an interactive rebase)

> git rebase -i fires up an editor and gives you a list of commits on you branch. There is a default pick operation in front of each. If you keep pick nothing will change. You can replace pick with other operations.
    - "squash" the commit into the previous one, prompt for change description
    - "fixup" of previous commit, which automatically retains its original description
    - "edit" the contents and description of commit

Remove current origin repository after clone

$ git remote remove origin