Can I create a node, assign a language and provide it a menu link with Drush? Just that. Can I create a node, assign a language and provide it  a menu link with Drush? 

Let say, I want to create a node:


of the basic content type 
with title set to "my title"
set to es language
and provide it  a menu link in the Main menu
Not out of the box. See this prior related question, all of these examples are created through the Devel 'generate content' library but they assume generic (ex. lipsum) content. For a custom build like you are asking with a specific title, you're best bet is going to be to create a custom Drush plugin using node_save to programmatically create a node with the values you want.