Use this passwdd utility to delete a group's account from a cluster of hosts. The groupdel utility connects sequentially with all machines specified in the passwdc.conf(5) configuration file and sends delete request. Such request is allowed to be made only from an authorized administrator.
The first and the only mandatory argument of the command is the group name that you want to delete. You may want to send the request not as the user who is currently logged on. In such case you should explicitly specify a user name as the second argument.
groupdel recognizes these options:
Use the file specifed as a parameter of the option to configure the daemon.
Configuration data for the groupdel utility. For more information see the passwdc.conf(5) manpage.
If not-null the full pathname for an alternate configuration file. Overridden by the -c option.
There should be some. If you found one or more of them send a mail and I will do my best to fix them.