Ansible ad hoc commands are one-liners designed to achieve a very specific task they are like quick snippets and your compact swiss army knife when you want to do a quick task across multiple machines.

To put simply, Ansible ad hoc commands are one-liner Linux shell commands and playbooks are like a shell script, a collective of many commands with logic.

Ansible ad hoc commands come handy when you want to perform a quick task.

Task-01

• write an ansible ad hoc ping command to ping 3 servers from inventory file

• Write an ansible ad hoc command to check uptime

• It will show an error because it doesn’t have the Ansible SSH private key. You can verify this using the inventory command.

ansible-inventory --list

• Execute this command to solve your error

ansible all -m ping

Write an ansible ad hoc command to check your date , time and uptime

• Now you can see date time and update or install your 'all' servers using these commands.

ansible all -a "free -h"

ansible all -a "date"

ansible all -a "sudo apt-get update"

ansible all -a "sudo apt-get install nginx -y"

ansible all -a "dh -h"

ansible all -a "free -h"

ansible all -a "uptime"