Implement PR #3859 with tabs

docs/tasks/tools/install-kubectl.md

@@ -21,29 +21,82 @@ Here are a few methods to install kubectl.
 {% capture steps %}
 ## Install kubectl binary via curl
 
-  1. Download the latest release with the command:
+{% capture macos %}
+1. Download the latest release with the command:
 
 ```shell
-# OS X
 curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/darwin/amd64/kubectl
+```
+
+To download a specific version, replace the `$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)` portion of the command with the specific version. 
+
+For example, to download version 1.4.6 on MacOS, type:
+`curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.4.6/bin/darwin/amd64/kubectl`
+
+2. Make the kubectl binary executable.
+
+```shell
+chmod +x ./kubectl
+```
+3. Move the binary in to your PATH. 
+
+```shell
+sudo mv ./kubectl /usr/local/bin/kubectl
+```
+{% endcapture %}
+
+{% capture linux %}
+1. Download the latest release with the command:
 
-# Linux
+```shell
 curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
+```
+
+To download a specific version, replace the `$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)` portion of the command with the specific version. 
+
+For example, to download version {{page.fullversion}} on Linux, type:
+`curl -LO https://storage.googleapis.com/kubernetes-release/release/{{page.fullversion}}/bin/linux/amd64/kubectl`
+
+2. Make the kubectl binary executable.
 
-# Windows
+```shell
+chmod +x ./kubectl
+```
+3. Move the binary in to your PATH. 
+
+```shell
+sudo mv ./kubectl /usr/local/bin/kubectl
+```
+{% endcapture %}
+
+{% capture win %}
+1. Download the latest release with the command:
+
+```shell
 curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/windows/amd64/kubectl.exe
 ```
-To download a specific version, replace the `$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)` portion of the command with the specific version. For example, to download version 1.4.6 on MacOS, type:
-`curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.4.6/bin/darwin/amd64/kubectl`
 
-  2. Make the kubectl binary executable.
+To download a specific version, replace the `$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)` portion of the command with the specific version. 
+
+For example, to download version {{page.fullversion}} on Windows, type:
+`curl -LO https://storage.googleapis.com/kubernetes-release/release/{{page.fullversion}}/bin/windows/amd64/kubectl.exe`
+
+2. Make the kubectl binary executable.
+
 ```shell
 chmod +x ./kubectl
 ```
-  3. Move the binary in to your PATH. 
+3. Move the binary in to your PATH. 
+
 ```shell
 sudo mv ./kubectl /usr/local/bin/kubectl
 ```
+{% endcapture %}
+
+{% assign tab_names = "macOS,Linux,Windows" | split: ',' | compact %}
+{% assign tab_contents = site.emptyArray | push: macos | push: linux | push: win %}
+
+{% include tabs.md %}
 
 ## Download as part of the Google Cloud SDK