![]() ![]() ![]() It focuses on Red Hat Enterprise Linux, but as RHEL is using systemd just as Debian does, the explanations made there should be applicable to Debian as well. If you want to know who did it, you will need to add a bit of code which means you'll know next time. You can read a more in-detailed description in "What is the difference between these commands for bringing down a Linux server?". Try the following commands: Display list of last reboot entries: last reboot less Display list of last shutdown entries: last -x less or more precisely: last -x grep shutdown less You won't know who did it however. There is no particular reason to specifically avoid the reboot command, as, in case of rebooting it does the very same thing as shutdown -r. Depending on whether you want a shutdown or reboot, you use one of these commands with the appropriate options. You cannot accomplish a shutdown with the reboot command to my knowledge, as the -poweroff switch is simply ignored when it is invoked through the reboot commandĪs shown both do their task. Shutdowns are accomplished with shutdown -h now or shutdown -P now.They lead to the same systemd target and therefore are doing exactly the same. Simple reboots are accomplished with shutdown -r and reboot.Show free inodes on mounted filesystems: df -i. Please remember to enter the interface name of your system, instead of enp0s3 as mentioned in this example. Run the following command to bring down the enp0s3 interface in the system. Common Syntax for ifconfig: ifconfig NICNAME Down/Up. See free and used space on mounted systems: df -h. In this example, let us see, how to bring up and down the interface using ifconfig command. You can use the df and du commands to check disk space in Linux. Add a new kernel module: modprobe module-name Disk Usage. That fully depends on the command line options you use on these commands. Shut Down the system immediately: shutdown now. Knowing this, both commands can lead to the very same targets and thus the very same kernel calls, doing the very same action. That's what defines what actually is happening. Shortly, both commands end up calling a specific systemd target, which in the end executes a system call.systemd is the init system that Debian uses and simply put, responsible for starting and stopping services, including invoking a shutdown and reboot. ![]() Thus, the commands are interpreted by systemd, which then decides the action to perform (among other tasks).You can simply verify this by executing ls -la /usr/sbin/shutdown and ls -la /usr/sbin/reboot.Both commands are a symbolic link to systemctl, the command line utility of systemd.First things first, what these commands actually do: ![]()
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