What is the difference between reboot and shutdown -r?
By Sarah Rodriguez •
The title says it all: What is the difference between executing shutdown -r and reboot?
1 Answer
Nothing, both of them do the same task.
From the respective man pages:
reboot, halt, poweroff
These programs allow a system administrator to reboot, halt or poweroff the system.Requests that the system be rebooted after it has been brought down.Without the -f option for reboot, it will gracefully terminate all processes, sending signal 15. However, using reboot -f will invoke the reboot(2) system call itself (with REBOOTCOMMAND argument passed) and directly reboots the system.
From a similar question on Unix and linux:
Internally, reboot uses shutdown -r.
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