How do you cancel a timed system halt?

Question

as the title says "How do you cancel a timed system halt" is there any CL for that? just like in window's run shutdown.exe -a for canceling a timed shutdown.

Answer 1

According to the man page, you can run shutdown -c (prepend sudo to grant root access).

Please note that it obviously won't work when shutdown is called with now as time parameter (shutdown now).