Move branches names on a local repo and push change to the remote. Defaults master -> main

mv-branch.sh

#!/bin/bash

oldb="${1:-master}"

newb="${2:-main}"

git pull --all

git checkout $oldb

git branch -m $oldb $newb

git push -u origin $newb

read -p "from the GitHub repo settings change the default branch to $newb. Press any key when done" x

git push origin --delete $oldb