名称

       groupdel - 删除一个组

大纲

       groupdel [options] GROUP

描述

       The groupdel command modifies the system account files, deleting all entries that refer to GROUP. The
       named group must exist.

选项

       The options which apply to the groupdel command are:

       -f, --force
           This option forces the removal of the group, even if there's some user having the group as the
           primary one.

       -h, --help
           显示帮助信息并退出。

       -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.

CAVEATS

       您不能移除现有用户的主组。在移除此组之前，必须先移除此用户。

       您需要手动检查所有文件系统，以确保没有遗留的属于此组的文件。

配置文件

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

       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.

文件

       /etc/group
           组账户信息。

       /etc/gshadow
           安全组账户信息。

退出值

       The groupdel command exits with the following values:

       0
           success

       2
           invalid command syntax

       6
           specified group doesn't exist

       8
           can't remove user's primary group

       10
           can't update group file

参见

       chfn(1), chsh(1), passwd(1), gpasswd(8), groupadd(8), groupmod(8), useradd(8), userdel(8), usermod(8).

shadow-utils 4.17.4                                2025-09-06                                        GROUPDEL(8)