The new SharePoint Online has an all-new Windows PowerShell module for admins to manage their sites and users. Windows PowerShell unlocks a lot of new scenarios, including bulk site creation and upgrade, and better quota management and reporting.
To make it easier to build out a variety of Windows PowerShell commands for SharePoint Online, we've designed a web-based tool named the Windows PowerShell for SharePoint Command Builder. (Note: To see all relevant SharePoint Online commands, select SharePoint Online from the Products drop-down list.)
This tool can help you visualize what actions you want to take and dynamically build a Windows PowerShell command that you can copy into your management session.