@@ -311,6 +311,12 @@ commands using a base image that does not contain `/bin/sh`.

 > If you want shell processing then either use the *shell* form or execute 

 > a shell directly, for example: `RUN [ "sh", "-c", "echo", "$HOME" ]`.

+> **Note**:

+> If you choose to use the *shell* form, any time you want to continue a single

+> `RUN` instruction onto the next line, it has to be ended with a backslash `\`.

+> For example,  `RUN /bin/bash -c 'source $HOME/.bashrc ;\` then on the next

+> line ` echo $HOME '`.

+

 The cache for `RUN` instructions isn't invalidated automatically during

 the next build. The cache for an instruction like 

 `RUN apt-get dist-upgrade -y` will be reused during the next build. The