define$ prlctl list --all
UUID STATUS IP_ADDR NAME
{3651b547-64c7-4e8c-833e-17e0c966faaa} running - CentOS 7
define$ prlctl set 3651b547-64c7-4e8c-833e-17e0c966faaa --userpasswd define:111
Authentication tokens updated successfully.
Success. The operation was successfully completed.