Ansible: execute command output, into another command

Question

I'm planning to create and run an ansible playbook (or a .sh script) that will detect the last user login, then if the login date is older than 30 days proceed to shutdown the server, otherwise stop the playbook.

My knowledge in ansible is basic and scripting too. :(

I'll execute this on my RHEL servers 6.x and 7.x

Execute last command for the test user

last | grep test
test     pts/1        127.0.0.1     Mon Sep 9 10:53 - 10:53  (00:00)

Save this output, if the date is older than 30 days, shutdown the server. How could i set this output as a variable into the next command ?

if [ "$(date +%D)" != "30" ];then

    shutdown -h now
fi

Answer 1

This is how i solved the problem

---
- name: Check last login
  hosts: REDHAT
  tasks: 
    - name: Last logged user
      shell: last | grep myusername
      register: output
      ignore_errors: yes

    - name: shutdown server
      shell: shutdown -h now
      become: yes
      when: (output.stdout|int - ansible_date_time.epoch|int) < 2592000