https://blog.agilebits.com/2017/09/06/announcing-the-1passwo...
https://app-updates.agilebits.com/product_history/CLI
However their official CLI sadly only supports interactions with the subscription service. If you are using local vaults then there are still open source CLIs for Linux:
https://github.com/latkin/1poshword (disclaimer: my project)
https://github.com/georgebrock/1pass