From e3f575397cb1f2435fd476dd15e4ba475a44b2a2 Mon Sep 17 00:00:00 2001
From: "dr.max" <maximilien@acm.org>
Date: Wed, 31 Jul 2019 14:23:35 -0700
Subject: [PATCH] fix(bug) correct response for unknown command or plugin
 fixes(#309)
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```bash
➜  client git:(issue309) ✗ ./kn lol
Manage your Knative building blocks:
* Serving: Manage your services and release new software to them.
* Eventing: Manage event subscriptions and channels. Connect up event sources.

Usage:
...
Use "kn [command] --help" for more information about a command.

unknown sub-command or plugin "lol" for "kn"
```
---
 pkg/kn/core/root.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkg/kn/core/root.go b/pkg/kn/core/root.go
index 2f5485fe7f..3a3ed47870 100644
--- a/pkg/kn/core/root.go
+++ b/pkg/kn/core/root.go
@@ -76,7 +76,9 @@ func NewDefaultKnCommandWithArgs(rootCmd *cobra.Command,
 		if _, _, err := rootCmd.Find(cmdPathPieces); err != nil {
 			err := plugin.HandlePluginCommand(pluginHandler, cmdPathPieces)
 			if err != nil {
-				fmt.Fprintf(errOut, "%v\n", err)
+				rootCmd.Help()
+				fmt.Println()
+				fmt.Printf("unknown command or plugin \"%s\" for \"kn\"\n", args[1])
 				os.Exit(1)
 			}
 		}