# Stash track/untrack changes
$ git stash -u or git stash --include-untracked

# Rename local branch
# If you are on the branch you want to rename:
$ git branch -m new-name

# If you are on a different branch:
$ git branch -m old-name new-name 

# Delete the old-name remote branch and push the new-name local branch.
$ git push origin old-name new-name

# Reset the upstream branch for the new-name local branch. Switch to the branch and then:
$ git push origin -u new-name

# Add file to the last commit (avoid this if the commit is already public 🙅🏼‍♂️)
$ git add my_missing_file
$ git commit --amend --no-edit

# List all origin from the remote repo
$ git remote prune origin --dry-run

# Prune origin in your local repo
$ git remote prune origin

# Prune when you fetch from a remote
$ git fetch --prune

# List all branches which have been merged
$ git branch --merged

# Prune local branches which have been merged
$ git branch -d branch-to-delete

# List all branches which have been NOT merged
$ git branch --no-merged

# Prune all branches which have been NOT merged
$ git branch -D un-merged-branch-to-delete

$ git remote -v
$ git remote add upstream [github url]
$ git remote -v
$ git fetch upstream
$ git checkout master
$ git merge upstream/master
$ git push origin master