git push an existing repository from the command line 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: how to upload existing project to github

git remote add origin remote repository URL
git remote -v
git push -f origin master

Example 3: git push existing code to new repository

git remote add origin