Master the concepts of Git with me through a set of tutorials

• Distributed Version Control System

• A GUI for hosting the Git folders/repositories/projects online to share, collaborate and contribute from around the world
• Other Platforms: BitBucket, GitLab

• Maintaining the history of the project versions
• To track changes made by each person
• Share the project around the world

• Git for macOS, Windows, Linux/Unix

• ls
  • Lists all the files and folders at present directory
• ls -a
  • Lists all the hidden files and folders as well
• ls .git
  • Lists all the files and folders inside .git folder
• mkdir project
  • Create a folder named project
• cd project
  • Changes directory to project folder
• touch names.txt
  • Create a file named touch.txt
• vi names.txt
  • Opens the vim editor for names.txt file
• cat names.txt
  • Displays all the content in names.txt file
• rm -rf names.txt
  • Deletes the names.txt file

• The information like history, versions and so on are stored in another folder that git provides us.
• This is known the git repository
• This folder is named .git
• In Linux file systems, the folders preceded with . are hidden

• At its core, git is like a key value store.
• The Value = Data
• The Key = Hash of the Data
• You can use the key to retrieve the content.

• git init
  • Initializes empty git repository in the current working directory
• git status
  • Know more about the changes made in the project
• git add names.txt
  • Adds names.txt file to the staging area
• git add .
  • Add all of the files in the staging area
  • . means add all of the files/folders
• git commit -m "names.txt file added"
  • Commit all the files
  • -m means to provide a message to the commit
• git restore --staged names.txt
  • Restores the changes made since previous commit from the staging area
• git log
  • Displays the entire history of commits
• git reset [hash value of the commit]
  • Removing a commit from the history of a project
• git stash
  • Save the progress somewhere else (like a backstage) and make the present working directory clean
• git stash pop
  • Bring back the changes saved (from backstage)
• git stash clean
  • Just deletes all the changes saved (from backstage)
• git remote add origin [GitHub Repository URL]
  • Attach local Git project to GitHub Repository
• git push origin main
  • Share the changes from local project to remote repository

• Consider a scenario of a wedding
  • 1 The Guests go the stage
  • 2 Photographer takes their picture with the couple
  • 3 The photos are saved in a wedding album
• Now, assume that the guests who have not taken their picture with couple yet as the Untracked files
• 1 Hence we take their picture by bringing them to stage => The untracked files are added to the staging area
• Now, we need to permanently save the picture in history
• 2 Hence the photographer takes their picture with the couple => The staged files

• Learn Branching in Git in an Interactive way

• Complete Git and GitHub Tutorial by Kunal Kushwaha https://github.com/kunal-kushwaha

• Front end Masters - Git in-depth by Nina Zakharenko https://github.com/nnja