What Command Can You Use to Safely Shut Down the Linux System Immediately?
"Shutdown" refers to the procedure of stopping and shutting down a calculator or server. This involves cutting the power to the main components of the organization using a controlled process. Applications are closed, agile processes and protocols are saved to the hard drive, device drivers are removed, and user settings are saved in the process. Linux operating systems tin easily be stopped, shut down, and restarted using the shutdown command and its various options. Linux shutdown commands are entered in the Linux terminal that is launched past using the keyboard shortcut [Ctrl] + [Alt] + [T]. You can then shut the terminal window with the shortcut [Ctrl] + [D].
Contents
- The essential Linux shutdown commands
- Standard command for shutting downwardly Linux
- Standard command for restarting Linux
- Control for shutting downward Linux immediately
- Command for restarting Linux immediately
- Scheduling Linux shutdowns or restarts
- Command for shutting down Linux subsequently 20 minutes
- Command for restarting Linux later 20 minutes
- Command for shutting down Linux at v:30 p.chiliad.
- Command for restarting Linux at 5:30 p.m.
- Linux shutdown – additional commands
- Command for powering off Linux
- Command for setting upward a wall message
- Command for cancelling scheduled shutdowns or restarts
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The essential Linux shutdown commands
When shutting down or restarting Linux via the last, the "shutdown" control is essential. You can add an choice to it followed by a time specification and a bulletin. The syntax of the Linux shutdown command is every bit follows:
shutdown [Selection] [Time] [MESSAGE] In that location is at least 1 alternative for each command listed here that produces the same result.
Standard command for shutting down Linux
Linux will close downward in under a minute. The "-h" option explicitly stands for the shutting down or powering off of a system. Y'all tin usually produce the aforementioned results past just entering the shutdown command on its own.
Standard command for restarting Linux
Linux will be restarted in nether a infinitesimal. The "-r" pick stands for reboot or restart.
Command for shutting down Linux immediately
Linux will immediately be shut down. In this example, the shutdown command is followed by the "-h" option and the fourth dimension specification "0" which means immediately. The post-obit is another far more common command for shutting down Linux immediately:
Command for restarting Linux immediately
Linux volition immediately be restarted. In this case, the shutdown command is followed past the "-r" choice and the time specification "0" which means immediately. The following is a oft used command for restarting Linux immediately:
The standard Linux shutdown command with the one-infinitesimal time delay is especially useful for multi-user solutions (i.east. when multiple users are accessing a Linux figurer or server). In this state of affairs, the network administrator is able to set upwards a warning message as a wall message to inform users that the arrangement will be shut downwards or restarted shortly. If Linux is only being used on a single computer, the commands for immediately shutting down or immediately restarting Linux are usually just as simple.
Tip
You lot can merely use shutdown commands on Linux if yous have the necessary ambassador rights. You can go around this on some Linux systems by only adding the "sudo" command before the Linux shutdown command in question (east.g. "sudo shutdown at present" or "sudo shutdown -r 0").
Scheduling Linux shutdowns or restarts
You can too hands schedule Linux shutdowns or restarts to occur after a certain period of time or at a sure time. To practice this, y'all take to add the number of minutes or the time later on the corresponding Linux shutdown command, every bit shown in the examples beneath:
Control for shutting down Linux after xx minutes
Linux will shut down 20 minutes after the control is entered. The following command is sometimes more commonly used and produces the same result:
Command for restarting Linux later twenty minutes
Linux volition restart twenty minutes after the command is entered. You lot can also use the plus sign with this command.
Command for shutting downwardly Linux at v:30 p.g.
Time specification is based on the 24-hour format in Linux in accordance with the syntax (hh:mm). In this instance, Linux is shut down at v:30 p.one thousand. (i.east. 17:30). Once again, yous can omit the "-h" choice which stands for the shutting down or powering off of a system:
Command for restarting Linux at 5:xxx p.grand.
Linux will restart at 5:30 p.m. (i.due east. 17:30). In this case, the "-r" choice, which stands for "reboot", plain cannot be omitted – otherwise, Linux would shut down without rebooting.
Linux shutdown – additional commands
In addition to the previously mentioned Linux shutdown commands, there are a number of other commands and options for stopping, shutting down, and restarting Linux operating systems. These can by and large as well be combined with commands for scheduled Linux shutdowns.
Note
In that location is a difference between "stopping a system" and "turning off a organisation". When you end information technology, all the processors (CPUs) are stopped, simply when you turn it off, it is also cut off from the master power supply. Generally, the term "shutdown" is understood to be the stopping and powering off of a system.
Command for powering off Linux
This command explicitly indicates that the organization will be shut downwardly and the master power supply will exist cut off.
Command for setting up a wall message
shutdown 'WRITE YOUR WALL Message HERE' A wall message is data that is displayed on the screen of the operating system users. For example, an ambassador can use a wall bulletin to inform users that the system is being shut down.
Command for cancelling scheduled shutdowns or restarts
Using this command, you can cancel a scheduled shutdown or restart. This requires that the process has not yet started.
Using simple commands in the Linux concluding, you can stop, shut down, and restart your operating system. As an culling to inbound Linux shutdown commands directly, you can install a graphical user interface using software, such as the program shutdown which is particularly suited to the Linux distribution Ubuntu.
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Source: https://www.ionos.co.uk/digitalguide/server/configuration/linux-shutdown-command/
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