Linux Force Reboot and Shutdown
Force Reboot :
echo 1 > /proc/sys/kernel/sysrqecho b > /proc/sysrq-trigger
Force Shutdown:
echo 1 > /proc/sys/kernel/sysrqecho o > /proc/sysrq-trigger
Better way of doing the about:
echo 1 > /proc/sys/kernel/sysrqecho e > /proc/sysrq-triggerecho i > /proc/sysrq-triggerecho s > /proc/sysrq-triggerecho s > /proc/sysrq-triggerecho b > /proc/sysrq-trigger