public function actionShow($user, $guid = false, $passHash = false, $accessToken = false, $authKey = false)
    {
        $user = $this->getUser($user);
        echo Yii::t('app', 'User') . " (" . $user->getID() . "), " . Yii::t('app', 'registered at') . " (" . $user->getCreatedAt() . ")"
                . ($user->getCreatedAt() == $user->getUpdatedAt() ? "" : ", " . Yii::t('app', 'last updated at') . " (" . $user->getUpdatedAt() . ")") .".\n";
        if ($guid) {
            echo "GUID: " . $user->getGUID() . "\n";
        }
        if ($passHash) {
            echo "Password Hash: " . $user->{$user->passwordHashAttribute} . "\n";
        }
        if ($accessToken) {
            echo "Access Token: " . $user->getAccessToken() . "\n";
        }
        if ($authKey) {
            echo "Authentication Key: " . $user->getAuthKey() . "\n";
        }
        return static::EXIT_CODE_NORMAL;
    }