Balint Reczey
326 lines
8.8 KiB
Plaintext
326 lines
8.8 KiB
Plaintext
'\" t
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.\" Title: userdel
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.\" Author: Julianne Frances Haugh
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.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
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.\" Date: 02/01/2022
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.\" Manual: Comandi per la gestione del sistema
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.\" Source: shadow-utils 4.11.1
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.\" Language: Italian
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.\"
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.TH "USERDEL" "8" "02/01/2022" "shadow\-utils 4\&.11\&.1" "Comandi per la gestione del si"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NOME"
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userdel \- rimuove l\*(Aqaccount di un utente ed i file relativi
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.SH "SINOSSI"
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.HP \w'\fBuserdel\fR\ 'u
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\fBuserdel\fR [opzioni] \fILOGIN\fR
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.SH "DESCRIZIONE"
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.PP
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The
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\fBuserdel\fR
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command modifies the system account files, deleting all entries that refer to the user name
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\fILOGIN\fR\&. The named user must exist\&.
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.SH "OPZIONI"
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.PP
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The options which apply to the
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\fBuserdel\fR
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command are:
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.PP
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\fB\-f\fR, \fB\-\-force\fR
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.RS 4
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This option forces the removal of the user account, even if the user is still logged in\&. It also forces
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\fBuserdel\fR
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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
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\fBUSERGROUPS_ENAB\fR
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is defined to
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\fIyes\fR
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in
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/etc/login\&.defs
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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\&.
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.sp
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\fINote:\fR
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This option is dangerous and may leave your system in an inconsistent state\&.
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.RE
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.PP
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\fB\-h\fR, \fB\-\-help\fR
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.RS 4
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Mostra un messaggio di aiuto ed esce\&.
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.RE
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.PP
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\fB\-r\fR, \fB\-\-remove\fR
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.RS 4
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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\&.
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.sp
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The mail spool is defined by the
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\fBMAIL_DIR\fR
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variable in the
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login\&.defs
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file\&.
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.RE
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.PP
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\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
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.RS 4
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Apply changes in the
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\fICHROOT_DIR\fR
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directory and use the configuration files from the
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\fICHROOT_DIR\fR
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directory\&.
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.RE
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.PP
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\fB\-P\fR, \fB\-\-prefix\fR\ \&\fIPREFIX_DIR\fR
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.RS 4
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Apply changes in the
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\fIPREFIX_DIR\fR
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directory and use the configuration files from the
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\fIPREFIX_DIR\fR
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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\&.
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.RE
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.PP
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\fB\-Z\fR, \fB\-\-selinux\-user\fR
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.RS 4
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Rimuove tutti gli utenti SELinux assegnati al login utente\&.
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.RE
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.SH "CONFIGURAZIONE"
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.PP
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The following configuration variables in
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/etc/login\&.defs
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change the behavior of this tool:
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.PP
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\fBMAIL_DIR\fR (string)
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.RS 4
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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\&. The parameter CREATE_MAIL_SPOOL in
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/etc/default/useradd
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determines whether the mail spool should be created\&.
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.RE
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.PP
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\fBMAIL_FILE\fR (string)
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.RS 4
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Imposta la posizione delle caselle di posta degli utenti relative alla loro directory home\&.
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.RE
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.PP
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The
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\fBMAIL_DIR\fR
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and
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\fBMAIL_FILE\fR
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variables are used by
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\fBuseradd\fR,
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\fBusermod\fR, and
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\fBuserdel\fR
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to create, move, or delete the user\*(Aqs mail spool\&.
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.PP
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If
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\fBMAIL_CHECK_ENAB\fR
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is set to
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\fIyes\fR, they are also used to define the
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\fBMAIL\fR
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environment variable\&.
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.PP
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\fBMAX_MEMBERS_PER_GROUP\fR (number)
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.RS 4
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Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
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/etc/group
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(with the same name, same password, and same GID)\&.
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.sp
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Il valore predefinito \(`e 0, che non pone nessun limite al numero di membri per gruppo\&.
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.sp
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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\&.
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.sp
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Se si deve impostare questo limite, si pu\(`o usare 25\&.
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.sp
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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\&.
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.RE
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.PP
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\fBUSERDEL_CMD\fR (string)
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.RS 4
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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)\&.
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.sp
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Il codice d\*(Aquscita restituito dallo script non \(`e preso in considerazione\&.
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.sp
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Here is an example script, which removes the user\*(Aqs cron, at and print jobs:
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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#! /bin/sh
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# Check for the required argument\&.
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if [ $# != 1 ]; then
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echo "Usage: $0 username"
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exit 1
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fi
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# Remove cron jobs\&.
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crontab \-r \-u $1
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# Remove at jobs\&.
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# Note that it will remove any jobs owned by the same UID,
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# even if it was shared by a different username\&.
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AT_SPOOL_DIR=/var/spool/cron/atjobs
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find $AT_SPOOL_DIR \-name "[^\&.]*" \-type f \-user $1 \-delete \e;
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# Remove print jobs\&.
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lprm $1
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# All done\&.
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exit 0
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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.RE
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.PP
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\fBUSERGROUPS_ENAB\fR (boolean)
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.RS 4
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Abilita l\*(Aqimpostazione dei bit di gruppo di umask in modo che siano gli stessi dei bit del proprietario (esempio: 022 \-> 002, 077 \-> 007) per utenti non root a condizione che uid e gid siano identici e che il nome utente sia lo stesso del gruppo primario\&.
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.sp
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If set to
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\fIyes\fR,
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\fBuserdel\fR
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will remove the user\*(Aqs group if it contains no more members, and
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\fBuseradd\fR
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will create by default a group with the name of the user\&.
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.RE
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.SH "FILE"
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.PP
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/etc/group
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.RS 4
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Informazioni sugli account di gruppo\&.
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.RE
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.PP
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/etc/login\&.defs
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.RS 4
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Configurazione del pacchetto password shadow
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.RE
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.PP
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/etc/passwd
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.RS 4
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Informazioni sugli account utente\&.
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.RE
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.PP
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/etc/shadow
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.RS 4
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Informazioni sicure sugli account utente\&.
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.RE
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.PP
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/etc/shadow\-maint/userdel\-pre\&.d/*, /etc/shadow\-maint/userdel\-post\&.d/*
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.RS 4
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Run\-part files to execute during user deletion\&. The environment variable
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\fBACTION\fR
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will be populated with
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\fBuserdel\fR
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and
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\fBSUBJECT\fR
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with the username\&.
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userdel\-pre\&.d
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will be executed prior to any user deletion\&.
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userdel\-post\&.d
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will execute after user deletion\&. If a script exits non\-zero then execution will terminate\&.
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.RE
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.PP
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/etc/subgid
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.RS 4
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Per user subordinate group IDs\&.
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.RE
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.PP
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/etc/subuid
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.RS 4
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Per user subordinate user IDs\&.
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.RE
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.SH "VALORI RESTITUITI"
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.PP
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The
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\fBuserdel\fR
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command exits with the following values:
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.PP
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\fI0\fR
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.RS 4
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success
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.RE
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.PP
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\fI1\fR
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.RS 4
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can\*(Aqt update password file
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.RE
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.PP
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\fI2\fR
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.RS 4
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invalid command syntax
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.RE
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.PP
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\fI6\fR
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.RS 4
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specified user doesn\*(Aqt exist
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.RE
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.PP
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\fI8\fR
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.RS 4
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user currently logged in
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.RE
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.PP
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\fI10\fR
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.RS 4
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can\*(Aqt update group file
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.RE
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.PP
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\fI12\fR
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.RS 4
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can\*(Aqt remove home directory
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.RE
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.SH "AVVISI/CAVEAT"
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.PP
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\fBuserdel\fR
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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
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\fB\-f\fR
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option can force the deletion of this account\&.
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.PP
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Occorre controllare manualmente tutti i file system per assicurarsi che non rimanga nessun file di propriet\(`a di questo utente\&.
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.PP
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Non \(`e possibile rimuovere nessun attributo NIS su un client NIS\&. Questo deve essere fatto sul server NIS\&.
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.PP
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If
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\fBUSERGROUPS_ENAB\fR
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is defined to
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\fIyes\fR
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in
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/etc/login\&.defs,
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\fBuserdel\fR
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will delete the group with the same name as the user\&. To avoid inconsistencies in the passwd and group databases,
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\fBuserdel\fR
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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
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\fB\-f\fR
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option can force the deletion of this group\&.
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.SH "VEDERE ANCHE"
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.PP
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\fBchfn\fR(1),
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\fBchsh\fR(1),
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\fBpasswd\fR(1),
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\fBlogin.defs\fR(5),
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\fBgpasswd\fR(8),
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\fBgroupadd\fR(8),
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\fBgroupdel\fR(8),
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\fBgroupmod\fR(8),
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\fBsubgid\fR(5), \fBsubuid\fR(5),
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\fBuseradd\fR(8),
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\fBusermod\fR(8)\&.
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