solution-sed.yaml

- hosts: nautilus_app3
  gather_facts: false
  become: true

  vars:
    src_file: /home/BSD.txt
    del_file: /home/BSD_DELETE.txt
    del_word: software
    rep_file: /home/BSD_REPLACE.txt
    rep_src_word: the
    rep_dest_word: for

  tasks:
    - name: Copy {{ src_file }} to {{ del_file }}
      copy:
        remote_src: true
        src: "{{ src_file }}"
        dest: "{{ del_file }}"
    - name: Delete all lines contain {{ del_word }}
      lineinfile:
        path: "{{ del_file }}"
        state: absent
        regexp: "{{ del_word }}"
    - name: Copy {{ src_file }} to {{ rep_file }}
      copy:
        remote_src: true
        src: "{{ src_file }}"
        dest: "{{ rep_file }}"
    - name: Replace all {{ rep_src_word }} to {{ rep_dest_word }}
      replace:
        path: "{{ rep_file }}"
        regexp: '\b{{ rep_src_word }}\b'
        replace: "{{ rep_dest_word }}"