From 677e991bb539858a954b95e7a8e2980c3ec96f57 Mon Sep 17 00:00:00 2001
From: ningmingxiao <ning.mingxiao@zte.com.cn>
Date: Tue, 6 Jan 2026 11:16:50 +0800
Subject: [PATCH] command: show help and exit on unknown positional arguments

Signed-off-by: ningmingxiao <ning.mingxiao@zte.com.cn>
---
 cmd/containerd/command/main.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cmd/containerd/command/main.go b/cmd/containerd/command/main.go
index c18794a9c8..c4d58c1322 100644
--- a/cmd/containerd/command/main.go
+++ b/cmd/containerd/command/main.go
@@ -119,6 +119,10 @@ can be used and modified as necessary as a custom configuration.`
 		ociHook,
 	}
 	app.Action = func(cliContext *cli.Context) error {
+		if args := cliContext.Args(); args.First() != "" {
+			return cli.ShowCommandHelp(cliContext, args.First())
+		}
+
 		var (
 			start       = time.Now()
 			signals     = make(chan os.Signal, 2048)