Git is a version control system that allow us to collaborate with other developers. It helps a person to store, manage code and keep tracking changes made in the codebase of a project they are working on.
Github is a web-base platform for code hosting. It helps you to work together with other people on various projects.
You can download and install Git from the official website. Download Link: https://git-scm.com/downloads
After installation is done, you can check the version by using this command.
git --version
Add GitHub username and email
git config --global user.name "rwiteshbera"
git config --global user.email "[email protected]"
Add a new SSH key to your GitHub account
- Generate new SSH Key:
ssh-keygen -t ed25519 -C "[email protected]"- Start the SSH agent:
eval "$(ssh-agent -s)"- Add SSH key to agent:
ssh-add ~/.ssh/id_ed25519- Copy the SSH key to clipboard:
cat ~/.ssh/id_ed25519.pub- Add the SSH key to your GitHub account:
- Go to your GitHub account settings.
- Click on SSH and GPG keys.
- Click New SSH Key.
- Paste the SSH key you copied from the clipboard into the provided field.
- Give your SSH key a descriptive title (e.g., "My Local Machine").
- Click Add SSH Key to save it to your GitHub account.
Your Git configuration is now set up to work with your GitHub account, and you have added an SSH key for secure access.
git init
This command will create a hidden subdirectory .git
After initializing Git, any changes made in the project can be tracked.
git status
It is used to display the state of a repository and staging area. It helps us to see the tracked and untracked changes. Staging area is like a rough space where files are not handled by git but are going to be a part of the next commit.
git add .
This command can be performed multiple times before commit. It will stage all the new and modified files of the current directory.
You can add individual files by specifying the name of the file like git add <file name>
git commit creates a commit which is like a snapshot of the repository at a specific times. Remember that if you don't stage anything, you won't be able to commit.
git commit -m "<Commit Message>"
It is used to display a history of commits that happens to a repository.
git log
If you have done any commits mistakenly, you can discard those commits to moves to a different commit and unstage files. Remember that the changed files are preserved.
git reset <hash id>
git reset --soft <hash id>- It will move your HEAD to the specified commit but doesn't touch the index or working tree. It leaves all files in staging area.git reset --mixed <hash id>- Reset the index but not the local files. Changed files are preserved but make them unstaged.git reset --hard <hash id>Reset the index and working tree both.
git checkout <hash id>
It will return to a old commit and change the files to that specific commit.
First Create a repository in Github by filling up the required details.
git init
git add README.md
git commit -m "first commit"
git branch -M main
git remote add origin [email protected]:rwiteshbera/Git-and-Github.git
git push -u origin main
git push -u origin <branch name>
It will upload local repository content to a remote github repository
git branch <branch name>
git branch
git checkout <branch name>
git clone <url of the repository>
It will create a copy of remote repository in your local system.