git add files to existing repository inintal commit code example
Example 1: git push existing repo
cd existing_folder
git init
git remote add origin https://gitlab.com/abc.git
git add .
git commit -m "Initial commit"
git push -u origin master
Example 2: initialize a repo and push to github
git init
git add -A
git commit -m 'Added my project'
git remote add origin git@github.com:sammy/my-new-project.git
git push -u -f origin master