if you wanna see something completely unhinged, read https://man7.org/linux/man-pages/man2/reboot.2.html
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@mcc @whitequark an interesting thread (on the magic numbers etc) - but worth reminding everyone - you probably don’t want to type ‘reboot’ any more than ripping out the power cable …(oh my poor lost cached writes).
@ijk64 It's different from shutdown -r now?