git script to remove all local branches that not exists in the remote

git-rm-branches.sh

#!/bin/bash

# Fetch the latest changes from the remote and prune deleted branches
git fetch --prune

# Get a list of all local branches
local_branches=$(git branch --format='%(refname:short)')

# Get a list of all remote branches
remote_branches=$(git branch -r --format='%(refname:short)' | sed 's/origin\///')

# Loop through each local branch
for branch in $local_branches; do
  # Check if the local branch exists on the remote
  if ! echo "$remote_branches" | grep -q "^$branch$"; then
    # If the branch does not exist on the remote, delete it
    echo "Deleting local branch: $branch"
    git branch -d "$branch"
  fi
done