'Execute the command'

def handle(self, *args, **options):

    content_store = contentstore()
    success = False
    log.info((u'-' * 80))
    log.info(u'Cleaning    up    assets    for    all    courses')
    try:
        assets_deleted = content_store.remove_redundant_content_for_courses()
        success = True
    except Exception as err:
        log.info(((u'=' * 30) + u'>    failed    to    cleanup'))
        log.info(u'Error:')
        log.info(err)
    if success:
        log.info((u'=' * 80))
        log.info(u'Total    number    of    assets    deleted:    {0}'.format(assets_deleted))
