This can now be demonstrated, from the account of user plutt, a member of the fire group.

现在，作为用户plutt (fire组的成员)操作。

youdao

Also from the lsgroup output, we know the following users will be denied access to su to the ukflag account: plutt, echoa, golf, hotel, India, Juliet, kilo.

还可以从lsgroup输出看出拒绝以下用户通过su变成用户ukflag： plutt, echoa, golf, hotel, india, juliet, kilo。

youdao