[v9] Install script changes and sudo command updates for Teleport ins…

…tall and configure (#11750)

* make cmd sudo friendly

* update command to be sudo friendly

docs/pages/includes/acme.mdx

@@ -10,7 +10,8 @@ domain name of your Teleport cluster and `[email protected]` is an email address
 used for notifications (you can use any domain):
 
 ```code
-teleport configure --acme [email protected] --cluster-name=tele.example.com > /etc/teleport.yaml
+teleport configure --acme [email protected] --cluster-name=tele.example.com | \
+ sudo tee /etc/teleport.yaml > /dev/null
 ```
 
 The `--acme`, `--acme-email`, and `--cluster-name` flags will add the following

docs/pages/includes/install-linux.mdx

@@ -5,9 +5,8 @@
         $ sudo curl https://deb.releases.teleport.dev/teleport-pubkey.asc \
           -o /usr/share/keyrings/teleport-archive-keyring.asc
         # Add the Teleport APT repository
-        $ cat<<EOF>/etc/apt/sources.list.d/teleport.list
-        deb [signed-by=/usr/share/keyrings/teleport-archive-keyring.asc] https://deb.releases.teleport.dev/ stable main
-        EOF
+        $ echo "deb [signed-by=/usr/share/keyrings/teleport-archive-keyring.asc] https://deb.releases.teleport.dev/ stable main" \
+        | sudo tee /etc/apt/sources.list.d/teleport.list > /dev/null
         $ sudo apt-get update
         $ sudo apt-get install teleport
         ```
@@ -62,4 +61,4 @@
         ```
   </TabItem>
 
-</Tabs>
+</Tabs>