add sudo to Red Hat-based distributions - en

Author: iamaliyousefi

content/en/docs/tasks/tools/install-kubectl-linux.md

@@ -130,7 +130,7 @@ For example, to download version {{< param "fullversion" >}} on Linux, type:
 {{% /tab %}}
 
 {{< tab name="Red Hat-based distributions" codelang="bash" >}}
-cat <<EOF > /etc/yum.repos.d/kubernetes.repo
+sudo cat <<EOF > /etc/yum.repos.d/kubernetes.repo
 [kubernetes]
 name=Kubernetes
 baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
@@ -139,7 +139,7 @@ gpgcheck=1
 repo_gpgcheck=1
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
-yum install -y kubectl
+sudo yum install -y kubectl
 {{< /tab >}}
 {{< /tabs >}}