OS Manuals

/usr/bin/ctr

k3s built with statically linked components

From k3s-static-1.32 1.32.13.1-r32 (os), captured 2026-11-05 by running ctr --help (exit 0). permalink

NAME:
   ctr -
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         containerd CLI


USAGE:
   ctr [global options] command [command options]

VERSION:
   v2.0.5

DESCRIPTION:

   ctr is an unsupported debug and administrative client for interacting
   with the containerd daemon. Because it is unsupported, the commands,
   options, and operations are not guaranteed to be backward compatible or
   stable from release to release of the containerd project.

COMMANDS:
   plugins, plugin            Provides information about containerd plugins
   version                    Print the client and server versions
   containers, c, container   Manage containers
   content                    Manage content
   events, event              Display containerd events
   images, image, i           Manage images
   leases                     Manage leases
   namespaces, namespace, ns  Manage namespaces
   pprof                      Provide golang pprof outputs for containerd
   run                        Run a container
   snapshots, snapshot        Manage snapshots
   tasks, t, task             Manage tasks
   install                    Install a new package
   oci                        OCI tools
   sandboxes, sandbox, sb, s  Manage sandboxes
   info                       Print the server info
   deprecations
   shim                       Interact with a shim directly
   help, h                    Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --debug                      Enable debug output in logs (default: false)
   --address value, -a value    Address for containerd's GRPC server (default: "/run/k3s/containerd/containerd.sock") [$CONTAINERD_ADDRESS]
   --timeout value              Total timeout for ctr commands (default: 0s)
   --connect-timeout value      Timeout for connecting to containerd (default: 0s)
   --namespace value, -n value  Namespace to use with commands (default: "k8s.io") [$CONTAINERD_NAMESPACE]
   --help, -h                   Show help (default: false)
   --version, -v                Print the version (default: false)
Options (7)
OptionDescriptionSource
--debugEnable debug output in logs (default: false)help
--address, -a valueAddress for containerd's GRPC server (default: "/run/k3s/containerd/containerd.sock") [$CONTAINERD_ADDRESS]help
--timeout valueTotal timeout for ctr commands (default: 0s)help
--connect-timeout valueTimeout for connecting to containerd (default: 0s)help
--namespace, -n valueNamespace to use with commands (default: "k8s.io") [$CONTAINERD_NAMESPACE]help
--help, -hShow help (default: false)help
--version, -vPrint the version (default: false)help

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.