Provided by: passwd_4.1.4.2+svn3283-3ubuntu5_i386 bug


       groupadd - создаёт новую группу


       groupadd [] 


       The groupadd command creates a new group account using the values
       specified on the command line plus the default values from the system.
       The new group will be entered into the system files as needed.


       Параметры команды groupadd:

       -f, --force
           This option causes the command to simply exit with success status
           if the specified group already exists. When used with -g, and the
           specified GID already exists, another (unique) GID is chosen (i.e.
           -g is turned off).

       -g, --gidGID
           Числовое значение идентификатора группы. Значение должно быть
           уникальным, если не задан параметр -o. Значение должно быть не
           отрицательным. По умолчанию, берётся значение больше 999 и больше
           идентификатора любой другой группы. Значения от 0 и до 999 обычно
           зарезервированы под системные группы.

       -h, --help
           Показать краткую справку и закончить работу.

       -K, --key=
           Изменить значения по умолчанию (GID_MIN, GID_MAX и другие), которые
           хранятся в файле /etc/login.defs. Можно указать несколько
           параметров -K.

           Example: -K GID_MIN=100 -K GID_MAX=499

           Замечание: запись вида -K GID_MIN=10,GID_MAX=499 пока не работает.

       -o, --non-unique
           This option permits to add a group with a non-unique GID.

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

           Note: This option is not recommended because the password (or
           encrypted password) will be visible by users listing the processes.

           You should make sure the password respects the system's password

       -r, --system
           Create a system group.

           The numeric identifiers of new system groups are chosen in the
           SYS_GID_MIN-SYS_GID_MAX range, defined in login.defs, instead of


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

       GID_MAX (number), GID_MIN (number)
           Range of group IDs used for the creation of regular groups by
           useradd, groupadd, or newusers.

       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.

       SYS_GID_MAX (number), SYS_GID_MIN (number)
           Range of group IDs used for the creation of system groups by
           useradd, groupadd, or newusers.


           содержит информацию о группах

           содержит защищаемую информацию о группах

           содержит конфигурацию подсистемы теневых паролей


       It is usually recommended to only use groupnames that begin with a
       lower case letter or an underscore, followed by lower case letters,
       digits, underscores, or dashes. They can end with a dollar sign. In
       regular expression terms: [a-z_][a-z0-9_-]*[$]?

       On Debian, the only constraints are that groupnames must neither start
       with a dash ('-') nor contain a colon (':') or a whitespace (space:' ',
       end of line: '\n', tabulation: '\t', etc.).

       Groupnames may only be up to 32 characters long.

       You may not add a NIS or LDAP group. This must be performed on the
       corresponding server.

       If the groupname already exists in an external group database such as
       NIS or LDAP, groupadd will deny the group creation request.


       Программа groupadd завершая работу, возвращает следующие значения:

           успешное выполнение

           ошибка в параметрах команды

           недопустимое значение параметра

           не уникальный gid (если не задан параметр -o)

           не уникальное имя группы

           не удалось изменить файл групп


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