Optimize Linux shell installation (kubernetes#12358)

Use `mv` instead the combination of `cp` and `rm` to put minikube into `/usr/local/bin`

content/en/docs/tasks/tools/install-minikube.md

@@ -59,7 +59,7 @@ curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/miniku
 Here's an easy way to add the Minikube executable to your path:
 
 ```shell
-sudo cp minikube /usr/local/bin && rm minikube
+sudo mv minikube /usr/local/bin
 ```
 
 ### Linux