how to add git repository to existing project code example

Example 1: upload new repo to git

echo "# Can-I-Shop-2" >> README.md
git init
git add .
git commit -m "first commit"
git remote add origin https://github.com/username/projectname.git
git push -u origin master

Example 2: add github repo

create a new repository on the command line
echo "# {Repo Name}" >> README.md
git init
git add README.md
git commit -m "first commit"
git branch -M main
git remote add origin https://github.com/cdcdianne/ReactJS-TheMovieDB.git
git push -u origin main
                
push an existing repository from the command line
git remote add origin https://github.com/cdcdianne/ReactJS-TheMovieDB.git
git branch -M main
git push -u origin main

Example 3: create repository in github using command line

git init
git add somefile
git commit -m "initial commit"
git remote add origin https://github.com/username/new_repo
git push -u origin master 

# New local repository
git init
git add .
git commit -m "Initial commit"

# New remote repository
# Create remote repository (likely on github), then:
git remote add origin https://github.com/username/new_repo #https
git remote add origin git@github.com:username/new_repo #ssh
# Now push
git push -u origin master

Example 4: git add existing project to repository

git remote add origin <repository url>
git branch -M main
git push -u origin main

Example 5: how to push your code to github

We make a change in one branch, and we want carry that
change to another branch. In order two merge two branches,
we need to
1. Switch to the branch where we want to take the changes to.
git checkout master(recently changed to main)
2. Run the merge command by mentioning the branch name
where the changes are.
git merge develop
Takes the changes from develop and merges into my current
branch (master)
git branch -d <branch_name> deletes the branch.
If we have unmerged changes, this command gives a warning
and does not delete.
git branch -D <branch_name> deletes the branch even if it has
unmerged changes. Gives no warning.
git push --set-upstream origin <branch_name> it creates a
new branch with given name in the remote and pushes the
changes from local branch to the new branch.

Example 6: push an existing repository from the command line

cd #existing_dir
git init
git remote add origin https://github.com/ #Repo
git branch -M main
git push -u origin main