关闭系统:shutdown -h now 关闭系统: init 0
关闭系统: telinit 0
按预定时间关闭系统: shutdown -h hours:minutes
取消按预定时间关闭系统: shutdown -c
重启: shutdown -r now
重启:reboot
注销: logout
系统的关机、重启以及登
原文：http://www.cnblogs.com/binblogs/p/5074954.html
