USERDEL(8) Comandi per la gestione del si USERDEL(8)

userdel - rimuove l'account di un utente ed i file relativi

userdel [opzioni] LOGIN

The userdel command modifies the system account files, deleting all entries that refer to the user name LOGIN. The named user must exist.

The options which apply to the userdel command are:

-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 e alla casella di posta dell'utente. I file collocati in altri file system dovranno essere cercati e rimossi manualmente.

The mail spool is defined by the MAIL_DIR variable in the login.defs file.

-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.

-Z, --selinux-user

Rimuove tutti gli utenti SELinux assegnati al login utente.

The following configuration variables in /etc/login.defs change the behavior of this tool:

/etc/group

Informazioni sugli account di gruppo.

/etc/login.defs

Configurazione del pacchetto password shadow

/etc/passwd

Informazioni sugli account utente.

/etc/shadow

Informazioni sicure sugli account utente.

/etc/shadow-maint/userdel-pre.d/*, /etc/shadow-maint/userdel-post.d/*

Run-part files to execute during user deletion. The environment variable ACTION will be populated with userdel and SUBJECT with the username. userdel-pre.d will be executed prior to any user deletion. userdel-post.d will execute after user deletion. If a script exits non-zero then execution will terminate.

/etc/subgid

Per user subordinate group IDs.

/etc/subuid

Per user subordinate user IDs.

The userdel command exits with the following values:

0

success

1

can't update password file

2

invalid command syntax

6

specified user doesn't exist

8

user currently logged in

10

can't update group file

12

can't remove home directory

userdel 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's password or account and remove the account later. The -f option can force the deletion of this account.

Occorre controllare manualmente tutti i file system per assicurarsi che non rimanga nessun file di proprietà di questo utente.

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 group otherwise. The -f option can force the deletion of this group.

chfn(1), chsh(1), passwd(1), login.defs(5), gpasswd(8), groupadd(8), groupdel(8), groupmod(8), subgid(5), subuid(5), useradd(8), usermod(8).

10/11/2022 shadow-utils 4.12.3