Refer the below Youtube Video link for better understanding.

https://youtu.be/4hLeQ6FEquY

Commands are -

For push-
git init

git remote add origin https://gitlab.com/crew-chief-systems/bot

git remote -v (for checking current repository)

git add -A(add all files)

git commit -m 'Added my project'

git pull --rebase origin master

git push origin master

For Global registratrtion-
git config --global user.email "you@example.com"
git config --global user.name "Your Name"

/// For pushing updates to Repo ---

git fetch origin master

git pull origin master

git add .

git commit -m 'your commit message'

git push origin master