- hosts: all
  remote_user: hyung-hwan
  tasks:
    - name: run ls
      shell: ls -laF /etc
      register: out

#    - name: print result
#      debug: 
#        msg: "xxx: {{ out.stdout }}"


    - name: print result
      debug: 
        msg: "xxx: {{ item }}"
      loop:  "{{ out.stdout_lines }}"