shutdown.txt

上一个上传的有问题,这个是好的。visopsys包括系统内核和GUI的全部SOURCE code ,还包括一些基本的docs文档。里面src子目录对应所有SOURCE code.对于想研究操作系统的朋

 -- shutdown --

A command for shutting down (and/or rebooting) the computer.

Usage:
  shutdown [-T] [-e] [-f] [-r]

This command causes the system to shut down.  If the (optional) '-e'
parameter is supplied, then 'shutdown' will attempt to eject the boot
medium (if applicable, such as a CD-ROM).  If the (optional) '-f' parameter
is supplied, then it will attempt to ignore errors and shut down
regardless.  Use this flag with caution if filesystems do not appear to be
unmounting correctly; you may need to back up unsaved data before shutting
down.  If the (optional) '-r' parameter is supplied, then it will reboot
the computer rather than simply halting.

In graphics mode, the program prompts the user to select 'reboot' or
'shut down'.  If the system is currently booted from a CD-ROM, the dialog
box also offers a checkbox to eject the disc.  If the '-r' parameter is
used, the dialog will not appear and the computer will reboot.

Options:
-T  : Force text mode operation.
-e  : Eject the boot medium.
-f  : Force shutdown and ignore errors.
-r  : Reboot.