command: reboot
purpose: reboot, halt, poweroff - reboot or stop the system
syntax: reboot [OPTION]..
options:
-f, --force Does not invoke shutdown(8) and instead performs the actual
action you would expect from the name.
-p, --poweroff Instructs the halt command to instead behave as poweroff
-w, --wtmp-only Does not call shutdown(8) or the reboot(2) system call and
instead only writes the shutdown record to /var/log/wtmp
--verbose Outputs slightly more verbose messages when rebooting, useful
for debugging problems with shutdown.
examples:
1. To reboot the system
$ reboot
sudo permission needed for user or
# reboot
2. To reboot system with message to users before reboot
# shutdown -r time "message"
-r reboot
time to reboot
message to all users
# shutdown -r +10 " system going to reboot save your work"
3. To see log of system reboot
# last reboot
regards,
dhanasekar
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