skeeks\cms\console\controllers\UtilsController::actionClearAllThumbnails PHP Method

    public function actionClearAllThumbnails()
    {
        /**
         * @var $files StorageFile[]
         */
        if ($files = StorageFile::find()->all()) {
            foreach ($files as $file) {
                $file->deleteTmpDir();
            }
        }
    }