k8s-master:~$ crictl --help
    NAME:
       crictl - client for CRI

    USAGE:
       crictl [global options] command [command options] [arguments...]

    VERSION:
       v1.12.0

    COMMANDS:
         attach        Attach to a running container
         create        Create a new container
         exec          Run a command in a running container
         version       Display runtime version information
         images        List images
         inspect       Display the status of one or more containers
         inspecti      Return the status of one or more images
         inspectp      Display the status of one or more pods
         logs          Fetch the logs of a container
         port-forward  Forward local port to a pod
         ps            List containers
         pull          Pull an image from a registry
         ...