Used to delete the specified workgroup
groupdel command is used to delete the specified workgroup. The system files to be modified by this command include /ect/group and /ect/gshadow. If the group still contains some users, they must be deleted before the group can be deleted.
groupdel(parameter)
Group: The name of the workgroup to be deleted.
groupadd damon //Create damon work group
groupdel damon //Delete this workgroup