man smbldap-groupdel (Administration système) - Delete a group
NAME
smbldap-groupdel - Delete a group
SYNOPSIS
smbldap-groupdel group
DESCRIPTION
The smbldap-groupdel command modifies the system account files,
deleting all entries that refer to a group.
The named group must exist.
You must manually check all filesystems to insure that no files remain
with the named group as the file group ID.