Provided by: passwd_4.0.18.2-1ubuntu2_i386 bug

NAZWA

       useradd - create a new user or update default new user information

SKŁADNIA

       useradd [opcje] LOGIN

       useradd -D

       useradd -D [opcje]

OPIS

       useradd is a low level utility for adding users. On Debian,
       administrators should usually use adduser(8) instead.

       When invoked without the -D option, the useradd command creates a new
       user account using the values specified on the command line plus the
       default values from the system. Depending on command line options, the
       useradd command will update system files and may also create the new
       user's home directory and copy initial files.

OPCJE

       Polecenie useradd posiada następujące opcje:

       -c, --commentKOMENTARZ
           Any text string. It is generally a short description of the login,
           and is currently used as the field for the user's full name.

       -b, --base-dirKAT_BAZOWY
           The default base directory for the system if -d dir is not
           specified.  BASE_DIR is concatenated with the account name to
           define the home directory. If the -m option is not used, BASE_DIR
           must exist.

       -D
           See below, the subsection "Changing the default values".

       -d, --homeKAT_DOMOWY
           The new user will be created using HOME_DIR as the value for the
           user's login directory. The default is to append the LOGIN name to
           BASE_DIR and use that as the login directory name. The directory
           HOME_DIR does not have to exist but will not be created if it is
           missing.

       -e, --expiredateDATA_WAN
           Data, od której konto danego użytkownika zostanie wyłączone. Data
           podawana jest w formacie MM/DD/RR.

       -f, --inactiveNIEAKTYWNE
           Liczba dni po wygaśnięciu hasła do stałego wyłączenia konta.
           Wartość 0 wyłącza konto natychmiast po przeterminowaniu hasła, zaś
           wartość -1 wyłącza tę cechę. Domyślną wartością jest -1.

       -g, --gidGRUPA
           The group name or number of the user's initial login group. The
           group name must exist. A group number must refer to an already
           existing group.

       -G, --groupsGRUPA1[,GRUPA2,...[,GRUPAN]]]
           A list of supplementary groups which the user is also a member of.
           Each group is separated from the next by a comma, with no
           intervening whitespace. The groups are subject to the same
           restrictions as the group given with the -g option. The default is
           for the user to belong only to the initial group.

       -h, --help
           Wyświetlenie komunikatu pomocy i zakończenie działania.

       -m, --create-home
           The user's home directory will be created if it does not exist. The
           files contained in SKEL_DIR will be copied to the home directory if
           the -k option is used, otherwise the files contained in /etc/skel
           will be used instead. Any directories contained in SKEL_DIR or
           /etc/skel will be created in the user's home directory as well. The
           -k option is only valid in conjunction with the -m option. The
           default is to not create the directory and to not copy any files.
           This option may not function correctly if the username has a / in
           it.

       -n
           A group having the same name as the user being added to the system
           will be created by default (when -g is not specified). This option
           will turn off this behavior. When this option is used, users by
           default will be placed in whatever group is specified in the GROUP
           variable of /etc/default/useradd. If no default group is defined,
           group 100 (users) will be used.

       -K, --keyKLUCZ=WARTO
           Overrides /etc/login.defs defaults (UID_MIN, UID_MAX, UMASK,
           PASS_MAX_DAYS and others).

           Example: -K PASS_MAX_DAYS=-1 can be used when creating system
           account to turn off password ageing, even though system account has
           no password at all. Multiple -K options can be specified, e.g.: -K
           UID_MIN=100
            -K UID_MAX=499

           Note: -K UID_MIN=10,UID_MAX=499 doesn't work yet.

           For the compatibility with previous Debian's useradd, the -O option
           is also supported.

       -o, --non-unique
           Allow the creation of a user account with a duplicate (non-unique)
           UID.

       -p, --passwordHASO
           The encrypted password, as returned by crypt(3). The default is to
           disable the account.

       -s, --shellSHELL
           The name of the user's login shell. The default is to leave this
           field blank, which causes the system to select the default login
           shell.

       -u, --uidUID
           The numerical value of the user's ID. This value must be unique,
           unless the -o option is used. The value must be non-negative. The
           default is to use the smallest ID value greater than 999 and
           greater than every other user. Values between 0 and 999 are
           typically reserved for system accounts.

   Changing the default values
       When invoked with only the -D option, useradd will display the current
       default values. When invoked with -D plus other options, useradd will
       update the default values for the specified options. Valid
       default-changing options are:

       -b, --base-dirKAT_BAZOWY
           The path prefix for a new user's home directory. The user's name
           will be affixed to the end of BASE_DIR to form the new user's home
           directory name, if the -d option is not used when creating a new
           account.

       -e, --expiredateDATA_WAN
           The date on which the user account is disabled.

       -f, --inactiveNIEAKTYWNE
           The number of days after a password has expired before the account
           will be disabled.

       -g, --gidGRUPA
           The group name or ID for a new user's initial group. The named
           group must exist, and a numerical group ID must have an existing
           entry.

       -s, --shellSHELL
           The name of a new user's login shell.

UWAGI

       The system administrator is responsible for placing the default user
       files in the /etc/skel/ directory.

OSTRZEŻENIA

       You may not add a user to a NIS group. This must be performed on the
       NIS server.

       Similarly, if the username already exists in an external user database
       such as NIS, useradd will deny the user account creation request.

       It is usually recommended to only use usernames that begin with a lower
       case letter or an underscore, and are only followed by lower case
       letters, digits, underscores, dashes, and optionally terminated by a
       dollar sign. In regular expression terms: [a-z_][a-z0-9_-]*[$]? On
       Debian, the only constraints are that usernames must neither start with
       a dash ('-') nor contain a colon (':') or a whitespace (space:' ', end
       of line: '\n', tabulation: '\t', etc.).

PLIKI

       /etc/passwd
           Informacja o kontach użytkowników.

       /etc/shadow
           Informacje chronione o użytkownikach.

       /etc/group
           Informacje o grupach użytkowników.

       /etc/default/useradd
           Default values for account creation.

       /etc/skel/
           Directory containing default files.

       /etc/login.defs
           Konfiguracja pakietu shadow.

KOD ZAKOŃCZENIA

       Polecenie useradd kończy działanie z następującymi wartościami kodów
       zakończenia:

       0
           poprawne zakończenie działania programu

       1
           nie można zaktualizować pliku z hasłami

       2
           niepoprawna składnia polecenia

       3
           nieprawidłowy argument opcji

       4
           UID juz jest używany (i nie uzyto opcji -o)

       6
           specified group doesn't exist

       9
           username already in use

       10
           nie można zaktualizować pliku z grupami

       12
           can't create home directory

       13
           can't create mail spool

ZOBACZ TAKŻE

       chfn(1), chsh(1), passwd(1), crypt(3), groupadd(8), groupdel(8),
       groupmod(8), login.defs(5), newusers(8), userdel(8), usermod(8).