@@ -393,17 +393,20 @@ If no `=` is provided and that variable is not exported in your local

 environment, the variable won't be set in the container.

 You can also load the environment variables from a file. This file should use

-the syntax `<variable>= value`, and `#` for comments.

+the syntax `<variable>=value` (which sets the variable to the given value) or

+`<variable>` (which takes the value from the local environment), and `#` for comments.

 ```bash

 $ cat env.list

 # This is a comment

 VAR1=value1

 VAR2=value2

+USER

 $ docker run --env-file env.list ubuntu env | grep VAR

 VAR1=value1

 VAR2=value2

+USER=denis

 ```

 ### Set metadata on container (-l, --label, --label-file)