如何将 gxmessage 设置为在登录时运行，并使退出代码触发事件

我想设置一个“计算机使用条款”消息在登录时弹出。如果用户点击“同意”，他们可以继续使用机器；如果他们单击“取消”，它将重新启动机器。这是我所拥有的：

#!/bin/bash

# This script is to set terms of use for this computer and force logged in guest to accept terms.
# If done correctly, it will restart the computer in the event that the terms are not accepted.

gmessage "This is a public terminal. Any use must be suitable for eyes of all ages. Failure to comply will result in your immediate removal from the property without any refund or discount." -center -title "Terms of Use" -default "Accept" -center -buttons "Accept":0,"Decline":1>/dev/null

case $? in
0)
gmessage "Enjoy our public terminal. :)" -center -title "Thank you for accepting the Terms of Use." -buttons "I will!":0;;

1)
(sudo reboot);;

esac

谁能帮我解决这个问题？在我将它放入“启动应用程序”列表之前，它一直按设计工作。我也chown root.root /path/to/script做过chmod u+x /path/to/script。我还编辑了 visudo 以包含该行%sudo ALL=NOPASSWD: /path/to/script，但仍然没有。该脚本运行良好，可以正常弹出我的所有窗口，但是当有人拒绝使用条款时不会重新启动计算机，如果用户不接受这些条款则不会注销用户。我不再卡住了，我的老板正在逼我实施此修复修复已经实施（如果有人试图从我们的公共计算机终端打印一些图形成人材料，卡在打印机缓冲区中；一个小女孩稍后试图打印一些着色书页，我们勉强拦截了成人材料在他们被非成年人看到之前）。

完整的功能代码如下。

#!/bin/bash

# This script is to set terms of use for this computer and force logged in guest to accept terms.
# If done correctly, this script will log the user out in the event that the terms are not accepted.

gmessage -fg red -bg black "   This is a public terminal. Any use must be suitable for eyes of all ages. Failure to comply will result in your immediate removal from the property without any refund or discount." -center -title "Terms of Use" -default "Accept" -center -buttons "Accept":0,"Decline":1>/dev/null

case $? in
0)
gmessage "   Enjoy our public terminal. :)" -center -title "Thank you!" -buttons "I will!":2;;

1)
(killall -u super8guest);;

esac


case $? in

2)
gmessage "Click here when you are finished." -center -title "Cleanup" -buttons "Done":3;;

esac

case $? in

3)
(killall -u super8guest);;

esac