Halt

来自 ChinaUnix Wiki

Linux命令：halt

功能说明：关闭系统。

语　　法：halt [-dfinpw]

补充说明：halt会先检测系统的runlevel。若runlevel为0或6，则关闭系统，否则即调用shutdown来关闭系统。

参　　数：
 -d 　不要在wtmp中记录。 
 -f 　不论目前的runlevel为何，不调用shutdown即强制关闭系统。 
 -i 　在halt之前，关闭全部的网络界面。 
 -n 　halt前，不用先执行sync。 
 -p 　halt之后，执行poweroff。 
 -w 　仅在wtmp中记录，而不实际结束系统。

英文版本，欢迎翻译：

ABOUT HALT, POWEROFF, AND REBOOT

Stop the computer.

SYNTAX

halt [-l] [-n] [-q] [-y] or halt [-n] [-w] [-d] [-f] [-i] [-p] [-h]

reboot [-n] [-w] [-d] [-f] [-i] poweroff [-n] [-w] [-d] [-f] [-i] [-h]

-d Don't write the wtmp record. The -n flag implies -d. -h Put all harddrives on the system in standby mode just before halt or poweroff. -i Shut down all network interfaces just before halt or reboot. -l Suppress sending a message to the system log daemon, syslogd, about who executed halt . -n Prevent the sync before reboot or halt. -p When halting the system, do a poweroff. This is the default when halt is called as poweroff. -q Quick halt. No graceful shutdown is attempted. -r Force halt or reboot, don't call shutdown. -y Halt the system, even from a dialup terminal. -w Don't actually reboot or halt but only write the wtmp record (in the /var/log/wtmp file).

EXAMPLES

halt Set the computer to a mode that enables a user to turn off the computer.

poweroff Stop the processor (if you have proper permission).