What are the disadvantages of shell modules in Ansible for task automation?

Shell modules in Ansible have several drawbacks when it comes to automation:

• Lack of idempotency: shell commands can perform actions that do not guarantee the same result upon re-execution.
• Debugging difficulty: errors in shell commands can be less obvious and harder to diagnose.
• Portability: shell commands may depend on a specific OS or environment, reducing the portability of playbooks.
• Security: using shell commands increases the risk of executing unwanted or dangerous commands.

Therefore, it is recommended to use specialized Ansible modules that ensure idempotency and better integrate with the system.