使用不带sudo权限的java重新启动运行ubuntu的计算机？

Question

有什么方法可以使用Java应用程序重新启动运行Ubuntu 13.04的计算机，而无需任何sudo权限？

Answer 1

No. You need root privileges to run shutdown/reboot.

However, you can exec a system command which has setuid root and runs shudown/reboot. Do you consider setuid/setgid equivalent to sudo for your question? Not recommended.

Here is how to run a system command, ( How to execute system commands (linux/bsd) using Java ).

Oh, and there is JNI ( http://www2.sys-con.com/itsg/virtualcd/java/archives/0510/Silverman/index.html ), again setuid.

Another way to shutdown the system would be to connect to a Tcpip controlled power switch. Then you could power off the system. Did you ensure security on your ehternet power switch? Powering the system back on is another challenge.