Provided by:
passwd_4.1.1-1ubuntu1_i386 
NOME
userdel - Rimuove l’account di un utente ed i file relativi
SINOSSI
userdel [opzioni] LOGIN
DESCRIZIONE
userdel is a low level utility for adding users. On Debian,
administrators should usually use deluser(8) instead.
The userdel command modifies the system account files, deleting all
entries that refer to the user name LOGIN. The named user must exist.
OPZIONI
Il comando userdel accetta le seguenti opzioni:
-f, --force
This option forces the removal of the user account, even if the
user is still logged in. It also forces userdel to remove the
user´s home directory and mail spool, even if another user uses the
same home directory or if the mail spool is not owned by the
specified user. If USERGROUPS_ENAB is defined to yes in
/etc/login.defs and if a group exists with the same name as the
deleted user, then this group will be removed, even if it is still
the primary group of another user.
Note: This option is dangerous and may leave your system in an
inconsistent state.
-h, --help
Mostra un messaggio di aiuto ed esce.
-r, --remove
I file nella home directory dell´utente verranno rimossi insieme
alla home directory stessa. I file collocati in altri file system
dovranno essere ricercati e rimossi manualmente.
The mail spool is defined by the MAIL_DIR variable in the
login.defs file.
CONFIGURATION
The following configuration variables in /etc/login.defs change the
behavior of this tool:
MAIL_DIR (string)
The mail spool directory. This is needed to manipulate the mailbox
when its corresponding user account is modified or deleted. If not
specified, a compile-time default is used.
MAIL_FILE (string)
Defines the location of the users mail spool files relatively to
their home directory.
The MAIL_DIR and MAIL_FILE variables are used by useradd, usermod, and
userdel to create, move, or delete the user´s mail spool.
MAX_MEMBERS_PER_GROUP (number)
Maximum members per group entry. When the maximum is reached, a new
group entry (line) is started in /etc/group (with the same name,
same password, and same GID).
The default value is 0, meaning that there are no limits in the
number of members in a group.
This feature (split group) permits to limit the length of lines in
the group file. This is useful to make sure that lines for NIS
groups are not larger than 1024 characters.
If you need to enforce such limit, you can use 25.
Note: split groups may not be supported by all tools (even in the
Shadow toolsuite. You should not use this variable unless you
really need it.
USERDEL_CMD (string)
If defined, this command is run when removing a user. It should
remove any at/cron/print jobs etc. owned by the user to be removed
(passed as the first argument).
USERGROUPS_ENAB (boolean)
FILE
/etc/group
Informazioni sugli account di gruppo.
/etc/login.defs
Shadow password suite configuration.
/etc/passwd
informazioni sugli account utente.
/etc/shadow
Informazioni sicure sugli account di utenti.
VALORI RESTITUITI
The userdel command exits with the following values:
0
successo
1
can´t update password file
2
sintassi del comando errata
6
il gruppo specificato non esiste
8
user currently logged in
10
non è possibile aggiornare il file group
12
can´t remove home directory
AVVISI/CAVEAT
userdel non permetterà di rimuovere alcun account se l´utente è
attualmente connesso. Occorre uccidere qualunque processo in esecuzione
che appartenga ad un account che si sta rimuovendo. Non è possibile
rimuovere nessun attributo NIS su un client NIS.
Non è possibile rimuovere nessun attributo NIS su un client NIS. Questo
deve essere fatto sul server NIS.
If USERGROUPS_ENAB is defined to yes in /etc/login.defs, userdel will
delete the group with the same name as the user. To avoid
inconsistencies in the passwd and group databases, userdel will check
that this group is not used as a primary group for another user, and
will just warn without deleting the user otherwise. The -f option can
force the deletion of this group.
VEDERE ANCHE
chfn(1), chsh(1), passwd(1), login.defs(5), gpasswd(8), groupadd(8),
groupdel(8), groupmod(8), useradd(8), usermod(8).