title: how to wipe cache android from adb terminal?
body: <p>I'm using an android system builded with yocto and I do often the updates of the apps with adb from linux, but after a certain quantity of updates the partition /dev/block/mmcblk2p3 remain full, and I can't continue to do others updates.
  How can I wipe the cache or clean it. using adb commands?</p>