Delete local & remote git branches after x months old

delete_branches.sh

#!/bin/sh

for branch in $(git branch -a | sed 's/^\s*//' | sed 's/^remotes\///' | grep -v 'master$\|develop$'); do
  if ! ( [[ -f "$branch" ]] || [[ -d "$branch" ]] ) && [[ "$(git log $branch --since "6 month ago" | wc -l)" -eq 0 ]]; then
    local_branch_name=$(echo "$branch" | sed 's/remotes\/origin\///')
    git branch -d "${local_branch_name}"
    echo "${local_branch_name}"
    git push origin --delete "${local_branch_name}"
  fi
done