GROUPMEMS(8) | Comandi per la gestione del si | GROUPMEMS(8) |
groupmems - membri amministratori del gruppo primario dell'utente
groupmems -a user_name | -d user_name | [-g group_name] | -l | -p
The groupmems command allows a user to administer their own group membership list without the requirement of superuser privileges. The groupmems utility is for systems that configure its users to be in their own name sake primary group (i.e., guest / guest).
Only the superuser, as administrator, can use groupmems to alter the memberships of other groups.
The options which apply to the groupmems command are:
-a, --add user_name
If the /etc/gshadow file exist, and the group has no entry in the /etc/gshadow file, a new entry will be created.
-d, --delete user_name
If the /etc/gshadow file exist, the user will be removed from the list of members and administrators of the group.
If the /etc/gshadow file exist, and the group has no entry in the /etc/gshadow file, a new entry will be created.
-g, --group group_name
-h, --help
-l, --list
-p, --purge
If the /etc/gshadow file exist, and the group has no entry in the /etc/gshadow file, a new entry will be created.
-R, --root CHROOT_DIR
The groupmems executable should be in mode 2710 as user root and in group groups. The system administrator can add users to group groups to allow or disallow them using the groupmems utility to manage their own group membership list.
$ groupadd -r groups $ chmod 2710 groupmems $ chown root.groups groupmems $ groupmems -g groups -a gk4
The following configuration variables in /etc/login.defs change the behavior of this tool:
MAX_MEMBERS_PER_GROUP (number)
Il valore predefinito è 0, che non pone nessun limite al numero di membri per gruppo.
Questa opzione (dividi gruppo) permette di limitare la lunghezza delle righe nel file «group». Questo è utile per essere certi che le righe per gruppi NIS non eccedano i 1024 caratteri.
Se si deve impostare questo limite, si può usare 25.
Nota: la divisione dei gruppi potrebbe non essere supportata da ogni strumento (anche all'interno del pacchetto Shadow). Non si dovrebbe utilizzare questa variabile a meno di esserci forzati.
/etc/group
/etc/gshadow
chfn(1), chsh(1), passwd(1), groupadd(8), groupdel(8), useradd(8), userdel(8), usermod(8).
07/02/2020 | shadow-utils 4.8.1 |