[root@CRLSDR05 student]# /usr/sbin/groupadd [student] usrp
Usage: groupadd [options] group

Options:
  -f, --force           force exit with success status if the specified
                                group already exists
  -r,                   create system account
  -g, --gid GID         use GID for the new group
  -h, --help                    display this help message and exit
  -K, --key KEY=VALUE           overrides /etc/login.defs defaults
  -o, --non-unique              allow create group with duplicate
                                (non-unique) GID