Systemctl reboot vs reboot. $ sudo systemctl start reboot.
answered Dec 18, 2023 at 19:58. （ただし以前の For convenience, the systemctl command also supports the reload-or-restart and reload-or-try-restart commands that restart such services instead. In the above example we started and then stopped the Apache service. Dec 15, 2023 · Windows Methods. Here your process will be killed by systemd after xx time period . Apr 13, 2015 · The --force option to the halt, reboot, and poweroff commands is the same as saying --force --force to the systemctl halt, systemctl reboot, and systemctl poweroff commands. Then why is sshd. whether you are root. If you use -h and -H together, the -H option takes priority. If it is important to run a specific job before or after something else, consider using a systemd timer/service to schedule it. In this two-part tutorial, you will learn how to configure a Linux service to restart automatically after a reboot or crash using systemd. Jan 11, 2021 · The author selected the Free and Open Source Fund to receive a donation as part of the Write for DOnations program. Additionally, you may set a wall message to be sent to all logged-in users before the system Mar 27, 2024 · To start a service in Linux, type in the following: sudo systemctl start [service-name] For instance, the command to start the Apache service is: sudo systemctl start apache2. To delay a system reboot in Linux with a user or root user authorized to run the reboot command without a password, use the following command: bash. Since reload only reloads the config, it will cause less disruption to existing activities and currently open connections; users might not even notice that it was run. RETURN VALUE top Mar 18, 2024 · reboot --(invokes)--> shutdown -r now --(invokes)--> systemctl isolate reboot. May 4, 2019 · The filesystems shows /sbin/reboot is a symbolic link to systemctl: # ls -l /sbin/reboot. calling: systemctl restart gunicorn resulted in 502 bad gateway errors for us. These 4 signals are described as clean signals by the systemctl man page. target: Connection timed out See system logs and 'systemctl status reboot. Wouldn't it be better to let 'shutdown' just be a simple command calling 'systemctl poweroff' (and let systemctl as-is)? – Apr 11, 2017 · systemctl try-restart name. Let’s edit our crontab: $ crontab -e. Sep 4, 2020 · You can start a systemd service with the following systemctl command: sudo systemctl start yourservice. Reload the systemd manager configuration. lrwxrwxrwx. service file for which you have executed the command and if any changes happened it will start using those changes now, so each time a change happens in any service file a reload is needed. Cancel a timed shutdown by using the -c option: Jan 17, 2023 · 2. Then from the search menu that appears, search for the Terminal application and launch it. Harap diperhatikan bahwa kebanyakan mesin akan menautkan perintah yang lebih pendek dan lebih konvensional untuk operasi ini agar berfungsi secara benar 8. Or you can simply use systemctl with required option, like for reboot as: $ sudo systemctl reboot. man for systemctl, reboot, systemd-halt. Jul 30, 2019 · Learn how to reboot Linux through different methods, from the GUI to the terminal. Stupid stupid name. You can append a message to all users by entering it after the time specification, like this: $ sudo shutdown --halt +5 “Attention. This will rerun all generators (see. systemctl reload name. Alternatively, we can specify the command we’d like to run in a crontab instead of a service file. First things first, what these commands actually do: Both commands are a symbolic link to systemctl, the command line utility of systemd. -f, --force. However, using reboot -f will invoke the Nov 22, 2022 · On a Linux box running systemd as the init system, you can use systemctl command to reboot your machine. systemctl stop always sends -15 (SIGTERM)? As an example, systemctl stop and systemctl kill have the same result for ssh. c, we also see that systemctl reboot will pass the replace-irreversibly option. At the time (Ubuntu 16. Jul 22, 2015 · 2,220 2 32 28. , by running reboot) vs when you simply restart the daemon (e. A new "soft-reboot" mechanism has been added to the service manager. sh[2014]: Terminated 00:59:30 shutdowntest. You can manage multiple services at once, for example, start two services: Aug 13, 2010 · Otherwise this simply invokes the shutdown (8) tool with the appropriate arguments. systemctl is the systemd. After editing the /etc/ssh/sshd_config file, use the systemctl restart command to make the service pick up the new settings: Dec 9, 2021 · Try with. The service commands were written at a time when it was common for different distributions to have different ways of launching services (aka daemons). target in the command above is a system target for systemctl. You can use it to find out about a service status: systemctl status name. At least in my environment, also, systemctl restart ssh. A possible cause is Nvidia drivers. Also, it appears that the RUN-LEVEL info for both operations is the same. sudo systemctl restart apache2. Apparently, systemctl checks how it's involved and systemctl reboot and reboot are presumably the same. 知乎专栏是一个自由写作和表达平台，让用户分享知识、经验和见解。 We would like to show you a description here but the site won’t allow us. Reload--> Read . systemctl reboot デフォルトでは、このコマンドにより、systemd が、システムに現在ログインしたすべてのユーザーに情報メッセージを送信します。 systemd がこのメッセージを送信しないようにするには、コマンドラインオプション --no-wall を付けてこのコマンド Linux のリブートコマンドの違い | systemctl、shutdown、reboot、poweroff、halt. Yet another option is to add acpi=noirq to the grub line. generator(7)), reload all unit files, and recreate the entire. Apropos to the problem at hand, it logs system shutdown and system boot as above. $ sudo systemctl start reboot. systemd. The service commands didn't care which way things were Apr 17, 2014 · man reboot: reboot, halt, poweroff. sudo reboot is used in tutorials / how-tos for compatibility reasons. become: yes. 首先，我认为您必须解释看似无关的事情。. To halt the system To relaod systemd a non-root user, use the --user option and remove the sudo command from beginning. While the daemon is being reloaded, all sockets systemd. You may specify a time string (which is usually “ now ” or “ hh:mm ” for hour/minutes) as the first argument. d script in your distro to make sure. , rsyslog) when rebooting the system (e. – May 24, 2022 · Check the current default target: $ sudo systemctl get -default. daemon_reload: yes. target' for details. Jul 15, 2021 · I could not find anything regarding a systemctl shutdown command, but understand that e. And stop a service via: sudo systemctl stop yourservice. sudo systemctl reboot Ini semua akan memperingatkan para pengguna yang log masuk mengenai kejadian tersebut, satu-satunya hal yang tidak akan dilakukan oleh menjalankan atau mengisolasi target. Those frontends also take care to add the rules in iptables and the iptables script can be skipped or better to say should be skipped, as the frontends will not pick up your changes you have done with iptables command directly. if you are root or. This command stops the Apache server and starts it again. The -f makes a difference ; from the man. Below is the command you should run. 9. 5. Jul 30, 2021 · Looking further upstream at implementation suggested the D-Bus interface of systemd-logind plays a significant role in system shutdown now. if you are on a host with systemd and. I understand that restart restarts the service whereas reload reloads the configuration. ) effectively additional dependencies are created. Jul 14, 2023 · Shutdown Command. However, the documentation does not explain this. state: restarted. May 17, 2022 · To let the service know about changes to the file, you need to restart the service so that it rereads the file. sudo /bin/systemctl status apache2. If your service is being managed by Systemd, you can use the Restart and RestartSec options to configure this behaviour for a particular service. Mar 24, 2018 · But when I sudo reboot or sudo shutdown now the machine, the service is killed without enough time to exit gracefully, and the /var/log/syslog ends only 1s later. Switch to the opposite target (for example, if your system boots to the GUI, switch to the CLI): $ sudo systemctl set-default multi-user. This is the same thing as the previous command. We should use the -f option with caution because this may result in data loss. service exists. socket after restarting gunicorn, restarted the socket and brought the server back online. Jan 3, 2019 · The systemctl or service commands are nearly the same thing and running service nginx start or systemctl start nginx will start a service in the background running the Nginx daemon. reboot invokes the shutdown (systemcall|command). Conversely, to stop a systemd service, issue the stop command: sudo systemctl stop apache2. sudo systemctl status apache2. I'm a new Linux user, I'm using LAMP in Ubuntu 18. Sep 30, 2020 · Restarting a Service with Systemctl. d though, easier to see the damn names by guessing and double tab. Reboot and confirm the appropriate target launched: $ sudo systemctl reboot. Mar 11, 2018 at 2:09. Notez que la plupart des machines relieront les commandes les plus courtes et les plus classiques de ces opérations afin qu’elles fonctionnent correctement avec systemd . Aug 10, 2022 · A useful feature that is often needed for long-running processes such as web servers is the ability to automatically restart the process in the event of a crash in order to minimise downtime. 我知道这 reboot 是重新启动电脑，虽然它 systemctl reboot 是做同样的事情但使用 systemd，但我不知道使用其中一个或另一个有什么区别. 30 10 * * 1-5 /usr/bin/systemctl restart my-service. 1 root root 16 Apr 27 13:57 /sbin/reboot -> . The command ausearch -i -m system_boot,system_shutdown | tail -4 will report the 2 most recent shutdowns or boots. The command has no output. Maybe you can only set the setuid for the group of reboot and change the group of reboot to your own user group (or create a new power group by hand). Calling. c code. At least in my system; read the init. sudo systemctl reboot; Все это оповестит подключенных пользователей о том, что происходит событие, что-то, что только выполняет или изолирует цель, не сработает. telinit is not the same as init. 00:59:30 shutdowntest. e. Come to find out the core repo package systemd-sysvcompat was not installed and was the culprit. service to reflect the change. Sep 28, 2021 · I have a service that should restart only once when something go wrong. At the core, there is no difference between Shutdown or Reboot, with regards to the "System Restart Required" message. Sep 5, 2018 · When you have modified /etc/ssh/sshd_config, you may execute systemctl restart sshd. Moving forward, applications on Linux are designed to uses the systemd method, not any other. For information on how to determine the status of a certain service unit, see Section 10. Apr 17, 2023 · Method-4: Use reboot end Sleep Commands. Note that shutdown and reboot are links to the same file. # (0) Arch Linux systemctl halt、systemctl poweroff、systemctl reboot、または systemctl kexec で -f オプションを使用する場合すべてのユニットをシャットダウンせずに、 選択した操作が実行されます。ただし、すべてのプロセスは強制的に終了され、すべてのファイル システムは Mar 18, 2024 · The systemctl command interacts with the SystemD service manager to manage the services. Hit / and type ^ +reboot and hit Enter. As stated in the manpages of reboot and shutdown they are "a legacy command available for compatibility only. this is exactly the same as systemctl reboot. このページでは Cent OS 7、RHEL 7 におけるリブートコマンドの違いに関して説明します。. The -c (cancel) option will cancel any scheduled shutdown, halt or Dec 2, 2011 · What you can do either way is to use the setuid bit in order to allow anyone to reboot the computer. For example, the command reboot -f is mostly equivalent to systemctl reboot -ff Jan 11, 2017 · General Foch is right. Jun 25, 2015 · Yes, you can make your service to restart it periodically by making your service of Type=notify . Aug 31, 2018 · Starting and Stopping a Service. I Oct 21, 2017 · 1. Oct 12, 2015 · The Arch Linux Wiki page on Power Management under Systemd states: polkit is necessary for power management as an unprivileged user. Instead I only found the TimeoutStopSec and TimeoutStartSecoptions. Now comes Reload option. Thus, the commands are interpreted by systemd, which then decides the action to perform (among other tasks). sh[2014]: shutdowntest received signal SIGTERM 00:59:30 shutdowntest. When specified once, this results in an immediate but clean shutdown by the system manager. While reboot might work. Here is my service: [Unit] Description=Do job on boot AllowIsolate=yes StartLimitBurst=1 # or 2 StartLimitIntervalSec=3 [ Feb 14, 2018 · 13. service (sshd Jun 4, 2018 · The possible solution is to register handler's status and use it in when statement, so your sample will look like: - name: Restart foo service. I know I could write a script and alias for those commands, but the point is that I'm already so used to typing sudo systemctl reboot and so I was hoping to add something to the existing command, not replace it with another. Putting it all together, this is what it would look like. - name: Reload foo service. You could configure your system so you don't need sudo as well. (There is a single between ^ and +) $ man 2 reboot is mentioned in there. Aug 18, 2017 · Does systemd use a different timeout setting for stopping a running daemon (e. m. And systemctl --all list-units ssh* tells me there isn't any service with the name sshd. If specified, the command does not contact the init system. When just calling reboot, systemctl detects that a kexec kernel is loaded and correctly kexec's , but when calling systemctl reboot it doesn't check if a kexec kernel is loaded and just preforms a normal reboot. systemctl --user daemon-reload. 2. Here, our entry specifies that we want to restart my-service. Normally it just tries to isolate targets. Add this option in [Service] section of your service file along with Restart=always and give WatchdogSec=xx, where xx is the time period in second you want to restart your service. For example, if you want to log at the debug level, you would use the following command: systemctl reboot --log-level=debug. Some predefined tasks in the system targets will be executed by the systemctl command — for example, stopping all running processes, unmounting mounted devices safely, and so on. service page, but I didn't spot it. service didn't list any delay parameter/configuration options. May 26, 2022 · For example, to halt the system after a five-minute delay, type: $ sudo shutdown --halt +5. Restart= [snip] Note that service restart is subject to unit start rate limiting configured with StartLimitIntervalSec= and StartLimitBurst=, see systemd. See full list on operavps. Mar 27, 2012 · When using systemd. I do miss init. What is the difference between the next two commands: sudo service apache2 restart. Start is simply starting a service when you want to use it but restart is mostly done when some changes are made in service files. Check if polkit service is running or see debug message for more information. This is true for distributions that have switched to systemd (for example, Arch Linux, the entire Debian family, including 94. Exit 1 OK, force it, then: # systemctl --force reboot Authorization not available. To list all enable services on your system, run the following command Sep 7, 2023 · The computer is brought down to the halt state and is then powered off. I'm trying to understand the difference between service restart [someservice] and service reload [someservice]. May 3, 2018 · Then you can use Restart=on-failure so that systemd tries to restart your unit when it fails. command for managing services. Cron jobs can only start when the cron daemon is running, and of course systemd starts the cron daemon like every other service. In this article, we've covered the basics of the `systemctl 2) It happens to have a Before clause on shutdown/reboot/halt targets, so it will run just before shutdown/reboot/halt is reached on stop (because they only run on stop it happens to do what you want). In the olden days, a script that did the orderly shutdown. However, depending on what server we're Jan 27, 2020 · The definition for Restart=on-abort is the service will be restarted only if the service process exits due to an uncaught signal not specified as a clean exit status. target, and leaves a 'mark' somewhere on the filesystem, which can get picked up on reboot. Hold down a power button, or physically disconnect power (remove battery). register: foo_restarted. You can use the systemctl command to manage services and control when they start. To start a systemd service in the current session, issue the start command: sudo systemctl start apache2. Refer this link for better understanding https://wiki. Digging into the nginx logs we saw that the socket file was not found. You can simply verify this by executing ls -la /usr/sbin/shutdown and ls -la /usr/sbin/reboot. sh[2014]: shutdowntest Shutting down: 10 more for example you might want to be sure if the application dies you would like to restart it (for that you should start it as a service, ideally through systemd mechanism) or if you want to be sure that the app is not frozen you want to have an external watchdog service to which your app would report "All good, I am alive". If you need to perform a systemctl restart a or reload a service's configuration file you can enter: sudo systemctl reload-or-restart yourservice. The syntax for starting and stopping services manually is as follows: systemctl start|stop|restart|try-restart|reload|reload-or-restart SERVICE-NAME. systemd: name: foo. service at 10:30 a. At this point, I'm struggling to "connect the dots" between reboot. Compare systemctl, shutdown, reboot, and poweroff commands and their options. Ctrl+Alt+Del: Press these three keys simultaneously, and select Power > Restart. 2 Starting and stopping services with systemctl. original question was posed on reddit, but I it fit here better. target The reboot. Command Prompt: Open the Command Prompt and type shutdown /r and hit enter. May 9, 2024 · Restart. systemctl reboot 和 reboot 有什么区别？. Less keystrokes to get a status and restart is good. target Authorization not available. com Nov 8, 2021 · systemctl kill supports sending a custom signal to the process, e. systemctl hibernate Aug 24, 2016 · systemctl enable, systemctl disable: marks (unmarks) the unit for autostart at boot time (in a unit-specific manner, described in its [Install] section); systemctl mask, systemctl unmask: disallows (allows) all and any attempts to start the unit in question (either manually or as a dependency of any other unit, including the dependencies of the May 4, 2019 · The filesystems shows /sbin/reboot is a symbolic link to systemctl: # ls -l /sbin/reboot. Aug 6, 2019 · # systemctl start reboot. So it appears that all three variations of reboot commands you found work the same: systemctl reboot, reboot. Added in version 253. The system is going down in five minutes. When a kexec kernel is loaded I expect calling reboot or systemctl reboot to be equivalent. So, is the only difference that systemctl kill is a more general version of systemctl stop, i. The -h (halt and poweroff) option is the same as -P. reboot -f. Cent OS7 / Redhat Enterprise Linux では systemctl コマンドが電源管理として使用されます。. Available in the "Core-Testing" repo. Restart a service. For initiating a shutdown, systemctl command goes like: $ sudo systemctl shutdown. To start, stop, and restart the Nginx process, we can run the respective commands with systemctl: Jan 5, 2024 · The –force option will let systemctl skip the system target and make the reboot() system call directly. # Reloads configuration if it's possible. However, you can use the -l or --log-level flag to set the log level to a different value. The reboot. ipmitool power reset triggers the same hardware reset mechanism but without calling shutdown. 2, “Displaying Service Status” . are symlinked to systemctl on my system. Generally speaking, restart will terminate the service in question and restart it; reload will only reload the configuration file. That is reboot. Dec 18, 2023 · 1. 04, both orders run equals in appearance. A "soft reboot" is similar to a regular reboot, except that it affects userspace only: the service manager shuts down any running services and other units, then optionally switches Force immediate power-off, halt, or reboot. I have been using the following appended on the kernel line. , systemctl restart rsyslog)? I've checked the systemd. -9 (SIGKILL) instead of -15 (SIGTERM). Apr 4, 2018 · No. Dec 15, 2020 · sudo systemctl reboot Ces fonctionnalités avertiront les utilisateurs que l’événement est en cours, ce qui ne se fera pas en exécutant ou isolant uniquement la cible. systemctl reboot. You can also use this to do a service nginx restart or systemctl restart nginx to restart the service, or even a service nginx reload / systemctl reload nginx to I much prefer service, but then I'm a 20+ year greybeard. In most cases, filesystems are not properly unmounted before shutdown. It disconnects all current users, which might be needed after serious errors or big changes to the server settings. For the other op values, reboot() returns -1 and errno is set to EINVAL. Is there some way under systemd to know if you are being called because of a system shutdown or reboot? I'm happy to get rid of the init script and configure it as a systemd target instead, but from the documentation I can't see a way to do what I want. Press Ctrl + Alt + Del which will usually reboot the computer. service apache2 restart is equivalent to -k stop followed by starting the server again. Shut down and reboot the system: systemctl reboot: Shut down and power-off the system: systemctl poweroff: Suspend the system: systemctl suspend: Put the system into hibernation (write RAM to disk) systemctl hibernate: Put the system into hybrid-sleep state (also called suspend-to-both, it saves RAM to disk and then suspends) systemctl hybrid-sleep Apr 20, 2018 · 11. man shutdown -r: Requests that the system be rebooted after it has been brought down. I wouldn't recommend putting it in /tmp, as the cleaning of /tmp is done by a upstart script everytime /tmp is mounted - practically, that means at every boot. target --job-mode=replace-irreversibly --no-block. Verify the service is active with: sudo systemctl status apache2. Mar 9, 2020 · 3. service ssh restart is a wrapper around systemctl restart ssh -- when you use the service command, it runs the systemctl command. – May 31, 2009 · On some more recent Arch installs, I noticed the "reboot" rather than "systemctl reboot" command worked. Think about it, before you do this though. When you run the command systemctl restart apache2 (or systemctl restart httpd on Red Hat-based systems), you are performing a Restart. # try to reload but if it's not possible restarts the service. unit(5) for details. This makes systemctl try to call reboot() directly. ". Hannu. In the meantime, my distro seemingly has retained the reboot. Jul 12, 2020 · 3. Introduction. c and systemd-logind. Manually switch targets: I just wondered why this isn't considered bad programming style: By making systemctl doing the switch on the various names of callers ('shutdown', 'reboot', etc. Mar 18, 2024 · Using a Cronjob. Doing so will relaod systemd (without requiring a system reboot) and make it aware that a new service named container-chitragupta-db. A restarted service enters the failed state only after the start limits are Mar 30, 2017 · Press Ctrl + D and it'll try again (and probably fail again). every weekday. Aug 11, 2019 · Restart--> STOP the service and then it will START the service. Failed to start reboot. But I don't understand the practical implications of this well enough to determine which I should use in a given context. g. systemctl reload-or-restart name. It may be used to halt, power-off or reboot the machine. whether there are other users logged in. This means a signal other than SIGHUP, SIGINT, SIGTERM or SIGPIPE. Create a new systemd service, which is wanted by reboot. Jul 25, 2017 · Looking at the source code of systemctl. service. ”. $ man systemctl Enter. Judging from the manual pages of both reboot and shutdown, it looks like shutdown provides a bit more lower-level functionality, and reboot is a higher-level tool that uses shutdown. Improve this answer. At times, though, it can be useful to Jun 30, 2016 · For modern RHEL you are recommended to use the systemctl command as summarised here: [recent] RHEL distributions should use the new systemctl command to issue poweroff/reboot. Both a shutdown and a reboot will clear it. service works. This is the new systemd approach to handling services. as well as systemctl start reboot. if no applications are blocking a reboot. I was curious, but not enough to check out as to why until today. If this reports a SYSTEM_SHUTDOWN followed by a SYSTEM_BOOT, all is well; however, if it reports 2 SYSTEM_BOOT lines in a row or only a single SYSTEM LINUX_REBOOT_CMD_POWER_OFF LINUX_REBOOT_CMD_HALT The "init" process is terminated, and wait(2) in the parent process reports that the child was killed with a SIGINT signal. The most popular these days are ufw and firewalld and maybe shorewall. # sleep 5 ; reboot. systemctl start reboot. sudo reboot will " always "* work, regardless of. 04), it seems the only way to get a proper reboot down to the BIOS was. archlinux. Force immediate halt, power-off, or reboot. From man systemctl (perhaps the longest man page in the world): daemon-reload. This command delays the reboot for 5 seconds. . It's also common on non-systemd systems. shutdown schedules a time for the system to be powered down. /bin/systemctl. Assuming that run_program will exit with status 2 whenever the files are corrupted (hopefully you can adapt this to other failure scenarios from the documentation above), this should work: systemctl soft-reboot Cool new feature! systemd 254-1. php/Systemd. target and ctrl-alt-del. target. Without the -f option for reboot, it will gracefully terminate all processes, sending signal 15. Share. For Windows users, there are a few ways to restart or reboot your computer: Start Menu: Click on the Start button, then select Power > Restart. systemd 、 SysVinit 是一组守护进程，负责在启动后 Apr 8, 2020 · sudo reboot normally runs the shutdown -r command, which closes running processes. These programs allow a system administrator to reboot, halt or poweroff the system. dependency tree. To restart a service, command-line Terminal is used. Now they are both links to systemctl. systemctl restart gunicorn. In order to open the Terminal, go to the Activities tab in the top left corner of your desktop. Unexpected behaviour you saw. For example, the command reboot -f is mostly equivalent to systemctl reboot -ff, instead of systemctl reboot -f . org/index. The output shows the service is active (running). Reboot the machine, regardless of which one of the three commands is invoked. If you are in a local systemd-logind user session and no other session is active, the following commands will work without root privileges: systemctl poweroff. The -r (reboot) option will take your computer down to the halt state and then restart it. With many computers pressing Esc during the boot process may give you more details and options. $ sudo shutdown $ sudo shutdown -r. Jul 7, 2018 · In newer distributions you normally have a frontend to configure and manage the firewall. Commented. systemctl suspend. service used wide and actually valid? May 10, 2016 · shutdown, reboot etc. This question already has answers here : Difference between systemctl and service commands (2 answers) Closed 4 years ago. To dig a little further, please read and post the output of journalctl that includes a failed shutdown/reboot, with. One of my main peeves with systemd is how long it takes to type 'systemctl'. Dec 18, 2023 · By default, the `systemctl reboot` command logs at the info level. Apr 18, 2022 · 4. service apache2 reload is equivalent to -k graceful. However, this only applies when you don't have a new pending update that requires a reboot to completely apply, and automatic updates could run on your system since the 'last Apr 7, 2024 · reboot --(invokes)--> shutdown -r now --(invokes)--> systemctl isolate reboot. Don't do this with systemd! With systemd, the reboot command is a symlink to systemctl, so you'll actually change systemctl to be setgid, and systemd does some security stuff (like don't trust env variables in setuid/gid programs) that will break it when setuid/gid. – Nicolás. Graceful Restart A service unit using Restart= enters the failed state only after the start limits are reached. Contrary to service command, it manages the services by interacting with the SystemD process instead of running the init script. Force immediate halt, power-off, reboot. kw pz tx yj kj hv qr fn hl al
