it's possibile to run the Magento standard Import from CLI? I have to import product every night with that standard format.
If you're using the Enterprise version, we can set up the Scheduled Import. This is an advanced feature of Magento EE: System > Data Transfer > Scheduled Imports/Exports. You can read more here: http://docs.magento.com/m2/ee/user_guide/system/data-scheduled-import-export.html
If you're using the Community version, you should build your own module or reference to a free source here.