将用户添加到组，但在运行"id"时未反映 [英] Add user to group but not reflected when run "id"

问题描述

R创建了一个名为staff的组，我希望能够在不以sudo身份启动R的情况下更新软件包.因此，我使用以下方法将自己添加到了员工中:

R creates a group called staff and I want to be able to update packages without starting R as sudo. So I added myself to staff using:

sudo usermod -G adm,dialout,cdrom,plugdev,lpadmin,admin,sambashare,staff matt

(旁边的问题有没有一种方法可以将您自己添加到一个组中，而无需列出您所属的其他每个组?)

(side question is there a way to add yourself to a group without listing every other group you're a member of?)

如果我查看/etc/groups，我会看到

If i check /etc/groups i see

staff:x:50:matt

和/etc/shadow相同

and the same for /etc/shadow

staff:*::matt

但是，如果我运行小组或ID，则我不是工作人员.另外，我无法对/usr/local/lib/R中的任何内容进行更改.

however if i run groups or id i'm not a member of staff. Also, I can't make changes to anything in /usr/local/lib/R.

推荐答案

运行sudo usermod命令后，您是否注销了"matt"帐户并重新登录?对用户在Unix下所在的组所做的更改仅在登录时生效.

Did you log the "matt" account out and back in after running the sudo usermod command? Changes to the groups a user is in under unix only take affect at login time.

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