The ability to restart Linux using the terminal is beneficial for remote system administration and troubleshooting.
There are several methods for restarting a Linux system, including using the reboot, shutdown, systemctl, init, telinit, and REISUB commands, as well as restarting via SSH.
The reboot command safely terminates all running processes and restarts the system immediately or at a specific time.
Running the shutdown command with the -r option is an alternative way to schedule a reboot.
Modern Linux distributions should use the systemctl reboot command, whereas older distributions should use the init command to restart the system.
Using the telinit command is another way to achieve this on modern systems.
REISUB (Magic SysRq Key) allows for a safe restart in the event of a unresponsive system.
By using the REISUB key sequence, specific commands are sent to the kernel to forcefully restart the system.
Remote management of Linux servers can be done easily via SSH, where the same commands can be executed.
Finally, it is important to confirm that the user has the appropriate permissions to execute these restart commands.