Tech/HowTo/Linux Magic Keys and Tips

When using Linux and maybe some other systems there are reserved key combinations and other interfaces that let you interact with the kernel directly. Read more at https://en.wikipedia.org/wiki/Magic_SysRq_key

Reboot

ALT + SysRq + b

Shutdown

ALT + SysRq + o

Forcing Reboot

echo 1 > /proc/sys/kernel/sysrq
echo b > /proc/sysrq-trigger

Force Shutdown

echo 1 > /proc/sys/kernel/sysrq
echo o > /proc/sysrq-trigger