command script run at system shutdown
When the system is shut down using the
commands, or when
is signalled to do so, or
when a keyboard-requested halt is issued (if the architecture supports it),
is invoked with the argument
“shutdown”. This document details the actions taken by
in such an instance.
Firstly it saves random data for reseeding the kernel random number generator
during the next boot. It then stops any daemons defined in the
passing them the stop
. The administrator should place in
this file any commands they wish to have executed during shutdown.
Finally, all carp(4)
brought down and then the system shuts down.
is exiting single-user
mode it will also run the first part of shutdown (saving random data), though
not the latter.