GROUPMOD(8) | 系统管理命令 | GROUPMOD(8) |
名称¶
groupmod - modify a group definition on the system
大纲¶
groupmod [选项] GROUP
描述¶
The groupmod command modifies the definition of the specified GROUP by modifying the appropriate entry in the group database.
选项¶
The options which apply to the groupmod command are:
-g, --gid GID
The value of GID must be a non-negative decimal integer. This value must be unique, unless the -o option is used.
Users who use the group as primary group will be updated to keep the group as their primary group.
Any files that have the old group ID and must continue to belong to GROUP, must have their group ID changed manually.
No checks will be performed with regard to the GID_MIN, GID_MAX, SYS_GID_MIN, or SYS_GID_MAX from /etc/login.defs.
-h, --help
-n, --new-name NEW_GROUP
-o, --non-unique
-p, --password PASSWORD
Note: This option is not recommended because the password (or encrypted password) will be visible by users listing the processes.
您应该确保密码符合系统的密码政策。
-R, --root CHROOT_DIR
-P, --prefix PREFIX_DIR
配置文件¶
The following configuration variables in /etc/login.defs change the behavior of this tool:
MAX_MEMBERS_PER_GROUP (number)
默认值是 0,意味着组中的成员数没有限制。
此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
如果要强制这个限制,可以使用 25。
注意:分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量,除非真的需要。
文件¶
/etc/group
/etc/gshadow
/etc/login.defs
/etc/passwd
退出值¶
The groupmod command exits with the following values:
0
2
3
4
6
9
10
11
12
13
参见¶
chfn(1), chsh(1), passwd(1), gpasswd(8), groupadd(8), groupdel(8), login.defs(5), useradd(8), userdel(8), usermod(8).
2019-08-07 | shadow-utils 4.6 |