what is git pull upstream code example

Example 1: 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

Example 2: how to check upstream git

$ git branch -vv
  main   aaf02f0 [main/master: ahead 25] Some other commit
* master add0a03 [jdsumsion/master] Some commit