File: //usr/lib/python3/dist-packages/awscli/examples/iot/start-on-demand-audit-task.rst
**To start an audit right away**
The following ``start-on-demand-audit-task`` example starts an AWS IoT Device Defender audit and performs three certificate checks. ::
aws iot start-on-demand-audit-task \
--target-check-names CA_CERTIFICATE_EXPIRING_CHECK DEVICE_CERTIFICATE_EXPIRING_CHECK REVOKED_CA_CERTIFICATE_STILL_ACTIVE_CHECK
Output::
{
"taskId": "a3aea009955e501a31b764abe1bebd3d"
}
For more information, see `Audit Commands <https://docs.aws.amazon.com/iot/latest/developerguide/AuditCommands.html>`__ in the *AWS IoT Developer Guide*.