How to add an app from app catalog to office 365 site through code or power shell

Is it possible to add app which is  available in App catalog to a site collection (office 365) through code i mean CSOM or JSOM or power shell .

I mean ,apps should made available in all sites when they are deployed to app catalog,and we are using power shell to deploy and install the apps,so need to append the code to make apps available to all site collection.

with regards Ravichandra