[root@ansible-server ~]# sudo yum install epel-release

[root@ansible-server ~]# sudo  yum install -y ansible

$ sudo apt update

$ sudo apt install software-properties-common

$ sudo apt-add-repository ppa:ansible/ansible

$ sudo apt update
$ sudo apt install ansible

[root@ansible-server test_ansible]# ansible -i hosts all -m ping

[root@ansible-server test_ansible]# ansible -i hosts all -m ping --limit host2

[root@ansible-server test_ansible]# ansible -i hosts all -m copy -a "src=/root/test_ansible/testfile dest=/tmp/testfile"

[root@ansible-server test_ansible]# ansible -i hosts all -m yum -a 'name=ncdu state=present'

[root@ansible-server test_ansible]# ansible -i hosts all -m yum -a 'name=ncdu state=absent'

[root@ansible-server test2]# ansible-galaxy init role1

[root@ansible-server test_ansible]# ansible-playbook -i hosts p4.yml --check

[root@ansible-server test_ansible]# ansible-playbook -i hosts p4.yml -k