'\" t
.\"     Title: userdel
.\"    Author: Julianne Frances Haugh
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 07/02/2020
.\"    Manual: Comandi per la gestione del sistema
.\"    Source: shadow-utils 4.8.1
.\"  Language: Italian
.\"
.TH "USERDEL" "8" "07/02/2020" "shadow\-utils 4\&.8\&.1" "Comandi per la gestione del si"
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.SH "NOME"
userdel \- rimuove l\*(Aqaccount di un utente ed i file relativi
.SH "SINOSSI"
.HP \w'\fBuserdel\fR\ 'u
\fBuserdel\fR [opzioni] \fILOGIN\fR
.SH "DESCRIZIONE"
.PP
\fBuserdel\fR
is a low level utility for removing users\&. On Debian, administrators should usually use
\fBdeluser\fR(8)
instead\&.
.PP
The
\fBuserdel\fR
command modifies the system account files, deleting all entries that refer to the user name
\fILOGIN\fR\&. The named user must exist\&.
.SH "OPZIONI"
.PP
The options which apply to the
\fBuserdel\fR
command are:
.PP
\fB\-f\fR, \fB\-\-force\fR
.RS 4
This option forces the removal of the user account, even if the user is still logged in\&. It also forces
\fBuserdel\fR
to remove the user\*(Aqs 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
\fBUSERGROUPS_ENAB\fR
is defined to
\fIyes\fR
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\&.
.sp
\fINote:\fR
This option is dangerous and may leave your system in an inconsistent state\&.
.RE
.PP
\fB\-h\fR, \fB\-\-help\fR
.RS 4
Mostra un messaggio di aiuto ed esce\&.
.RE
.PP
\fB\-r\fR, \fB\-\-remove\fR
.RS 4
I file nella home directory dell\*(Aqutente verranno rimossi insieme alla home directory stessa e alla casella di posta dell\*(Aqutente\&. I file collocati in altri file system dovranno essere cercati e rimossi manualmente\&.
.sp
The mail spool is defined by the
\fBMAIL_DIR\fR
variable in the
login\&.defs
file\&.
.RE
.PP
\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
.RS 4
Apply changes in the
\fICHROOT_DIR\fR
directory and use the configuration files from the
\fICHROOT_DIR\fR
directory\&.
.RE
.PP
\fB\-P\fR, \fB\-\-prefix\fR\ \&\fIPREFIX_DIR\fR
.RS 4
Apply changes in the
\fIPREFIX_DIR\fR
directory and use the configuration files from the
\fIPREFIX_DIR\fR
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\&.
.RE
.PP
\fB\-Z\fR, \fB\-\-selinux\-user\fR
.RS 4
Rimuove tutti gli utenti SELinux assegnati al login utente\&.
.RE
.SH "CONFIGURAZIONE"
.PP
The following configuration variables in
/etc/login\&.defs
change the behavior of this tool:
.PP
\fBMAIL_DIR\fR (string)
.RS 4
La directory di spool per la posta\&. Questa \(`e necessaria per manipolare la casella di posta quando il corrispondente account utente viene modificato o cancellato\&. Se non \(`e specificata viene utilizzato un valore impostato al momento della compilazione\&.
.RE
.PP
\fBMAIL_FILE\fR (string)
.RS 4
Imposta la posizione delle caselle di posta degli utenti relative alla loro directory home\&.
.RE
.PP
The
\fBMAIL_DIR\fR
and
\fBMAIL_FILE\fR
variables are used by
\fBuseradd\fR,
\fBusermod\fR, and
\fBuserdel\fR
to create, move, or delete the user\*(Aqs mail spool\&.
.PP
\fBMAX_MEMBERS_PER_GROUP\fR (number)
.RS 4
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)\&.
.sp
Il valore predefinito \(`e 0, che non pone nessun limite al numero di membri per gruppo\&.
.sp
Questa opzione (dividi gruppo) permette di limitare la lunghezza delle righe nel file \(Fogroup\(Fc\&. Questo \(`e utile per essere certi che le righe per gruppi NIS non eccedano i 1024 caratteri\&.
.sp
Se si deve impostare questo limite, si pu\(`o usare 25\&.
.sp
Nota: la divisione dei gruppi potrebbe non essere supportata da ogni strumento (anche all\*(Aqinterno del pacchetto Shadow)\&. Non si dovrebbe utilizzare questa variabile a meno di esserci forzati\&.
.RE
.PP
\fBUSERDEL_CMD\fR (string)
.RS 4
Se definito, questo comando viene eseguito quando si cancella un utente\&. Dovrebbe rimuovere tutti i compiti di stampa/cron/at di propriet\(`a dell\*(Aqutente da cancellare (passato come primo argomento)\&.
.sp
Il codice d\*(Aquscita restituito dallo script non \(`e preso in considerazione\&.
.sp
Here is an example script, which removes the user\*(Aqs cron, at and print jobs:
.sp
.if n \{\
.RS 4
.\}
.nf
#! /bin/sh

# Check for the required argument\&.
if [ $# != 1 ]; then
	echo "Usage: $0 username"
	exit 1
fi

# Remove cron jobs\&.
crontab \-r \-u $1

# Remove at jobs\&.
# Note that it will remove any jobs owned by the same UID,
# even if it was shared by a different username\&.
AT_SPOOL_DIR=/var/spool/cron/atjobs
find $AT_SPOOL_DIR \-name "[^\&.]*" \-type f \-user $1 \-delete \e;

# Remove print jobs\&.
lprm $1

# All done\&.
exit 0
      
.fi
.if n \{\
.RE
.\}
.sp
.RE
.PP
\fBUSERGROUPS_ENAB\fR (boolean)
.RS 4
If set to
\fIyes\fR,
\fBuserdel\fR
will remove the user\*(Aqs group if it contains no more members, and
\fBuseradd\fR
will create by default a group with the name of the user\&.
.RE
.SH "FILE"
.PP
/etc/group
.RS 4
Informazioni sugli account di gruppo\&.
.RE
.PP
/etc/login\&.defs
.RS 4
Configurazione del pacchetto password shadow
.RE
.PP
/etc/passwd
.RS 4
Informazioni sugli account utente\&.
.RE
.PP
/etc/shadow
.RS 4
Informazioni sicure sugli account utente\&.
.RE
.PP
/etc/subgid
.RS 4
Per user subordinate group IDs\&.
.RE
.PP
/etc/subuid
.RS 4
Per user subordinate user IDs\&.
.RE
.SH "VALORI RESTITUITI"
.PP
The
\fBuserdel\fR
command exits with the following values:
.PP
\fI0\fR
.RS 4
success
.RE
.PP
\fI1\fR
.RS 4
can\*(Aqt update password file
.RE
.PP
\fI2\fR
.RS 4
invalid command syntax
.RE
.PP
\fI6\fR
.RS 4
specified user doesn\*(Aqt exist
.RE
.PP
\fI8\fR
.RS 4
user currently logged in
.RE
.PP
\fI10\fR
.RS 4
can\*(Aqt update group file
.RE
.PP
\fI12\fR
.RS 4
can\*(Aqt remove home directory
.RE
.SH "AVVISI/CAVEAT"
.PP
\fBuserdel\fR
will not allow you to remove an account if there are running processes which belong to this account\&. In that case, you may have to kill those processes or lock the user\*(Aqs password or account and remove the account later\&. The
\fB\-f\fR
option can force the deletion of this account\&.
.PP
Occorre controllare manualmente tutti i file system per assicurarsi che non rimanga nessun file di propriet\(`a di questo utente\&.
.PP
Non \(`e possibile rimuovere nessun attributo NIS su un client NIS\&. Questo deve essere fatto sul server NIS\&.
.PP
If
\fBUSERGROUPS_ENAB\fR
is defined to
\fIyes\fR
in
/etc/login\&.defs,
\fBuserdel\fR
will delete the group with the same name as the user\&. To avoid inconsistencies in the passwd and group databases,
\fBuserdel\fR
will check that this group is not used as a primary group for another user, and will just warn without deleting the group otherwise\&. The
\fB\-f\fR
option can force the deletion of this group\&.
.SH "VEDERE ANCHE"
.PP
\fBchfn\fR(1),
\fBchsh\fR(1),
\fBpasswd\fR(1),
\fBlogin.defs\fR(5),
\fBgpasswd\fR(8),
\fBgroupadd\fR(8),
\fBgroupdel\fR(8),
\fBgroupmod\fR(8),
\fBsubgid\fR(5), \fBsubuid\fR(5),
\fBuseradd\fR(8),
\fBusermod\fR(8)\&.