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groupmems − 用 户 主 组 的 管 理 员 成 员
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groupmems −a user_name | −d user_name | [−g group_name] | −l | −p |
The groupmems command allows a user to administer their own group membership list without the requirement of superuser privileges. The groupmems utility is for systems that configure its users to be in their own name sake primary group (i.e., guest / guest).
Only the superuser, as administrator, can use groupmems to alter the memberships of other groups.
The options which apply to the groupmems command are:
−a, −−add user_name
Add a user to the group membership list.
If the /etc/gshadow file exist, and the group has no entry in the /etc/gshadow file, a new entry will be created.
−d, −−delete user_name 从 组 成 员 列 表 中 删 除 用 户 。
If the /etc/gshadow file exist, the user will be removed from the list of members and administrators of the group.
If the /etc/gshadow file exist, and the group has no entry in the /etc/gshadow file, a new entry will be created.
−g, −−group group_name 超 级 用 户 可 以 指 定 修 改 哪 个 组 的 组 成 员 列 表 。
−h, −−help 显 示 帮 助 信 息 并 退 出 。
−l, −−list 列 出 组 成 员 。
−p, −−purge 从 组 成 员 列 表 中 删 除 所 有 用 户 。
If the /etc/gshadow file exist, and the group has no entry in the /etc/gshadow file, a new entry will be created.
−R, −−root CHROOT_DIR
Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory.
In this operating system the groupmems executable is not setuid and regular users cannot use it to manipulate the membership of their own group.
The following configuration variables in /etc/login.defs change the behavior of this tool:
/etc/group 组 账 户 信 息 。
/etc/gshadow 安 全 组 账 户 信 息
chfn(1), chsh(1), passwd(1), groupadd(8), groupdel(8), useradd(8), userdel(8), usermod(8).