---
- hosts:  b1
  user: root
  gather_facts: false
  vars_prompt:
    - name: script
      prompt: "script? "
      private: false
    - name: result_file
      prompt: "result file ? "
      private: false

  pre_tasks:
  - name: insert header
    lineinfile:
      path: "{{ result_file }}"
      line: "machine\tuser\tquestions.."
      state: present
      create: true
    delegate_to: localhost

  tasks:
  - name: copy script
    copy:
      src: "{{ script }}"
      dest: /root
      mode: 0700

  - name: exec script
    command: "/root/{{ script }}"
    register: result

  post_tasks:
  - name: get result
    lineinfile:
      path: "{{ result_file }}"
      line: "{{ result.stdout }}"
      create: true
    delegate_to: localhost