init and push to remote

git init

git add .

git commit -m "init"

git remote add origin <url>

git branch -M main

git push origin main

commit

# add 1.txt
git add 1.txt
# add .
git add .

git commit -m 'add 1.txt'

git pull origin main

git push

# force push
git push -f origin main:main

git pull <remote> <remote-branch>:<local-branch>
git push <remote> <local-branch>:<remote-branch>