Command queries are a kind of reverse search. You enter commands in the search field, and Quick Search returns items that support those commands.
For example, the search query
>select text returns a list of GameObjects in the current Scene that you can select, and that match the search term "text".
> (right angle bracket)
Default action: Executes the command on the selected item.
Context menu actions: These vary depending on the command you use, and the type of item Quick Search returns.
Command query commands
You can use the following query commands in Quick Search:
||GameObjects that you can select, or highlight in the Hierarchy window.|
||Assets that you can open in an Editor window.|
||Assets that you can highlight in the Project window.|
||A list of Assets and/or GameObjects. You can open any item's normal context menu.|
||Executes a command or computation|
||Quick Search help in the results area.|
||Console log entries that you can copy to the clipboard.|
||Available resources for an Online search.|
||Packages that you can install (the same way you would using the install option in the Package search).|
||Packages that you can uninstall (the same way you would using the remove option in the Package search).|
Command query Search Provider