断电

Question

简单的

poweroff

和

poweroff --poweroff

Answer 1

您可以使用man poweroff命令查看poweroff命令的手册页：

NAME

       halt, poweroff, reboot - Halt, power-off or reboot the machine

SYNOPSIS

       halt [OPTIONS...]

       poweroff [OPTIONS...]

       reboot [OPTIONS...]

DESCRIPTION

       halt, poweroff, reboot may be used to halt, power-off or reboot the machine.
<...snip...>

       -p, --poweroff
           Power-off the machine, regardless of which one of the three commands is invoked.

正如最后一句所述，halt --poweroff、poweroff --poweroff和reboot --poweroff执行相同的操作。