bash script to quickly switch a git repo from master to main

rename-git-master-to-main

#!/usr/bin/env bash

# confirm user action
echo "You are about to rename git master branch to main?"
read -r -p "Are you sure? [y/N] " response

if [[ "$response" =~ ^([yY][eE][sS]|[yY])$ ]]
then
  git branch -m master main
  git push -u origin main
  
  if git push origin --delete master ; then
  else
    echo ""
    echo "Deleting remote master branch failed"
    hub browse -- settings/branches
    
    # wail for user to return
    read -n 1 -s -r -p "Manually change default branch in GitHub, then Press any key to continue"
    
    git push origin --delete master
  fi
  
  echo "Done."
  exit 0
else
  echo "Canceled."
  exit 0
fi