NOME
groupmod - modifica la definizione di un gruppo del sistemaSINOSSI
groupmod
[ opzioni] GRUPPO
DESCRIZIONE
The groupmod command modifies the definition of the specified GROUP by modifying the appropriate entry in the group database.OPZIONI
The options which apply to the groupmod command are: -a, --append GIDIf group members are specified with -U, append
them to the existing member list, rather than replacing it.
-g, --gid GID
The group ID of the given GROUP will be
changed to GID.
The value of GID must be a non-negative decimal integer. This value must
be unique, unless the -o option is used.
Gli utenti che hanno il gruppo come gruppo primario verranno aggiornati per
mantenere tale gruppo come loro gruppo primario.
Any files that have the old group ID and must continue to belong to
GROUP, must have their group ID changed manually.
No checks will be performed with regard to the GID_MIN, GID_MAX,
SYS_GID_MIN, or SYS_GID_MAX from /etc/login.defs.
-h, --help
Mostra un messaggio di aiuto ed esce.
-n, --new-name NEW_GROUP
The name of the group will be changed from
GROUP to NEW_GROUP name.
-o, --non-unique
When used with the -g option, allow to
change the group GID to a non-unique value.
-p, --password PASSWORD
The encrypted password, as returned by
crypt(3).
Note: This option is not recommended because the password (or encrypted
password) will be visible by users listing the processes.
Ci si deve accertare che la password rispetti le norme delle password del
sistema.
-R, --root CHROOT_DIR
Apply changes in the CHROOT_DIR
directory and use the configuration files from the CHROOT_DIR
directory. Only absolute paths are supported.
-P, --prefix PREFIX_DIR
Apply changes in the PREFIX_DIR
directory and use the configuration files from the PREFIX_DIR
directory. This option does not chroot and is intended for preparing a
cross-compilation target. Some limitations: NIS and LDAP users/groups are not
verified. PAM authentication is using the host files. No SELINUX
support.
-U, --users
A list of usernames to add as members of the
group.
The default behavior (if the -g, -N, and -U options are not
specified) is defined by the USERGROUPS_ENAB variable in
/etc/login.defs.
CONFIGURAZIONE
The following configuration variables in /etc/login.defs change the behavior of this tool:FILE
/etc/groupInformazioni sugli account di gruppo.
/etc/gshadow
Informazioni sicure sugli account di
gruppo.
/etc/login.defs
Configurazione del pacchetto password
shadow
/etc/passwd
Informazioni sugli account utente.
VALORI RESTITUITI
The groupmod command exits with the following values: 0E_SUCCESS: success
2
E_USAGE: invalid command syntax
3
E_BAD_ARG: invalid argument to option
4
E_GID_IN_USE: group id already in use
6
E_NOTFOUND: specified group doesn't
exist
9
E_NAME_IN_USE: group name already in use
10
E_GRP_UPDATE: can't update group file
11
E_CLEANUP_SERVICE: can't setup cleanup
service
12
E_PAM_USERNAME: can't determine your username
for use with pam
13
E_PAM_ERROR: pam returned an error, see syslog
facility id groupmod for the PAM error message
VEDERE ANCHE
chfn(1), chsh(1), passwd(1), gpasswd(8), groupadd(8), groupdel(8), login.defs(5), useradd(8), userdel(8), usermod(8).| 23/03/2023 | shadow-utils 4.13 |