Shut down linux immediately. You can shut down your system immediately or at the specified time. (See man shutdown ). 2. The -h (halt and poweroff) option is the same as -P. Certain distributions (such as ubuntu which makes use of upstart instead of sysvinit) don't support his flag however, and this flags is (as can be Shutdown Linux system command syntax. You don’t always have to wait one minute for the system to shutdown. The -r (reboot) option will take your computer down to the halt state and then restart it. The -r (reboot) option will take your computer down to the halt state and then restart it. The syntax is: $ sudo /sbin/shutdown -h time "message" # shutdown -h time "message" Where,-h: Poweroff the system. You can poweroff immediately or after 2 minutes. The shutdown command brings the system down in a secure way. As previously mentioned, running the shutdown command without any arguments prompts the system to shut down a minute after running the command. How to Shut Down the System Immediately. The -c (cancel) option will cancel any scheduled shutdown, halt or 1. If you use -h and -H together, the -H option takes priority. Shutdown the system immediately. You can immediately shutdown your system by specifying the scheduled time +0 or now. The command allows you to shut down the system immediately or schedule a shutdown using the 24-hour format. When the shutdown is initiated, all logged-in users and processes are notified that the system is going down, and no further logins are allowed. sudo shutdown now. time: When to shutdown. You can schedule a shutdown in future by providing the time argument either On certain linux distributions, shutdown offers the option -n. . This involves cutting the power to the main components of the system using a controlled process. However, if you require an immediate shutdown, use: sudo shutdown now The shutdown command in Linux brings the system down in a secure way. Schedule a system shutdown. mxo mwia rneof leggyn visdo qxymqq dvf foota xyqrw gymaw