git set upstream

git branch --set-upstream-to <remote-branch>

// example
git branch --set-upstream-to origin feature-branch

// show up which remote branch a local branch is tracking
git branch -vv

// short version to set upstream with very first push
git push -u origin local-branch

git push --set-upstream origin <remote-branch>

git branch --set-upstream-to=origin/branch

git push --set-upstream origin <branch>

git status -sb