rename-branch.sh

#!/bin/bash

# Checkout master branch
git checkout master

# Rename "master" to "main"
git branch -m master main

# Unset the current upstream branch
git branch --unset-upstream

# Publish the "main" branch as upstream
git push origin -u main

# Delete the "master" branch from origin
# Note that this will cause an error from GitHub unless you go
# to the repo settings and change the default branch to "main"
git push origin --delete master

ohyeeeeeeeeeeeeeeeee thx u