$ curl cheat.sh/
 cheat.sheets:reboot 
# reboot
# Reboot the system.

# Reboot immediately:
reboot

# Reboot immediately without gracefully shutdown:
reboot -f

# Reboot without reboot
echo 1 > /proc/sys/kernel/sysrq
echo b > /proc/sysrq-trigger

 cheat:reboot 
# reboot at 22:00
shutdown -r 22:00

 tldr:reboot 
# reboot
# Reboot the system.
# More information: <https://manned.org/reboot.8>.

# Reboot the system:
reboot

# Power off the system (same as `poweroff`):
reboot --poweroff

# Halt the system (same as `halt`):
reboot --halt

# Reboot immediately without contacting the system manager:
reboot --force

# Write the wtmp shutdown entry without rebooting the system:
reboot --wtmp-only

$
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