how to push an existing git repository to github 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: push an existing github repository

git remote add origin https://github.com/Javlon002/asiance_data_mobile.git
git branch -M main
git push -u origin main

Example 3: push a project to an existing repoin github using git

$ git init -b main