Shutdown
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'''now''' is a valid keyword for the "time" argument. | '''now''' is a valid keyword for the "time" argument. | ||
| − | + | '''shutdown -h now''' will halt the machine immediately - all users will be logged out forcefully, all pending writes will be performed, all disks sync'd, and the system will halt and wait for reboot. | |
| − | + | '''shutdown -h +5''' will broadcast a console message to all currently logged in users warning them that the system will shutdown in 5 minutes, at which time it will forcefully log them out and do so. | |
| − | + | '''shutdown -r 0412310000''' will broadcast a console message warning users of a shutdown at midnight on New Year's Eve of 2004, and at that time will forcefully log them out, halt the system, and automatically reboot. | |
Compare to [[init]]. | Compare to [[init]]. | ||
[[Category:System Commands]] [[Category:Common Tasks]] | [[Category:System Commands]] [[Category:Common Tasks]] | ||
Revision as of 08:09, 14 September 2004
Used to shutdown a machine. shutdown requires two arguments: a command and a time.
Common Flags and arguments
-h will halt the machine -r will reboot the machine -p will turn the power off after shutdown (only works on some BIOSes) -k will send out a message that the machine will reboot, but not actually do it now is a valid keyword for the "time" argument.
shutdown -h now will halt the machine immediately - all users will be logged out forcefully, all pending writes will be performed, all disks sync'd, and the system will halt and wait for reboot.
shutdown -h +5 will broadcast a console message to all currently logged in users warning them that the system will shutdown in 5 minutes, at which time it will forcefully log them out and do so.
shutdown -r 0412310000 will broadcast a console message warning users of a shutdown at midnight on New Year's Eve of 2004, and at that time will forcefully log them out, halt the system, and automatically reboot.
Compare to init.
