How to automate slot selection after android AB-Update

To enter fastbootd mode, bootloader writes boot-fastboot into the command field of the BCB message and leaves the recovery field of BCB unchanged (to enable

Fastboot ❕Intel Core i5-6200U @ ❕6th Generation ❕Intel HD change due to unstable dollar rate ‼️

fastboot set active slot First you need the actual fastboot, 3 Then the correct command is: fastboot --set-active=a

fastboot getvar currentslot But I want without fastboot command My usecase is the bootloader need to check the currect active slot and set the proper suffix How can I