Question

我正在用Java编写程序来关闭Ubuntu服务器。

 echo password | sudo -S shutdown -h now
 sudo -p 'password' shutdown -h now

其中一个命令都不起作用。

我需要sudo命令关闭并通过传递密码重新启动我的服务器。因为我从程序中执行此操作，所以不应提示输入密码。密码也应该与命令一起发送。任何建议都会有所帮助.....

Answer 1

sudo的-p选项指定提示，而不是密码。看看-A选项。来自sudo手册页的摘录 - ：

 -A          Normally, if sudo requires a password, it will read it from the current 
             terminal.  If the -A (askpass) option is specified, a
             helper program is executed to read the user's password and output the 
             password to the standard output.  If the SUDO_ASKPASS environment variable 
             is set, it specifies the path to the helper program.  Otherwise, the value
             specified by the askpass  option in sudoers(5) is used.

帮助程序必须输出正确的密码。所以要指定帮助程序 - ：

 export SUDO_ASKPASS="/path/to/helper"

ubuntu reboot＆amp;带密码的shutdown命令

1 个答案: