Linux -- newgrp

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NEWGRP(1)                          使用者命令                          NEWGRP(1)

名稱
       newgrp - 登入到一個新組

大綱
       newgrp [-] [group]

描述
       The newgrp command is used to change the current group ID during a
       login session. If the optional - flag is given, the user‘s environment
       will be reinitialized as though the user had logged in, otherwise the
       current environment, including current working directory, remains
       unchanged.

       newgrp changes the current real group ID to the named group, or to the
       default group listed in /etc/passwd if no group name is given.  newgrp
       also tries to add the group to the user groupset. If not root, the user
       will be prompted for a password if she does not have a password (in
       /etc/shadow if this user has an entry in the shadowed password file, or
       in /etc/passwd otherwise) and the group does, or if the user is not
       listed as a member and the group has a password. The user will be
       denied access if the group password is empty and the user is not listed
       as a member.

       If there is an entry for this group in /etc/gshadow, then the list of
       members and the password of this group will be taken from this file,
       otherwise, the entry in /etc/group is considered.

設定檔
       在 /etc/login.defs 中有如下組態變數，可以用來更改此工具的行為：

       SYSLOG_SG_ENAB (boolean)
           允許“syslog”記錄 sg 的活動。

檔案
       /etc/passwd
           使用者賬戶資訊。

       /etc/shadow
       /etc/group
           組賬戶資訊。

       /etc/gshadow
           安全性群組賬戶資訊。

參見
       id(1), login(1), su(1), sg(1), gpasswd(1), group(5), gshadow(5).

shadow-utils 4.1.5.1              2014-02-17                         NEWGRP(1)

Linux -- newgrp