sh trap handling upon reboot

[Seeker]

This is my trap:

trap -- 'echo
echo Going down!
exit "$_CODE"' EXIT
trap -- 'echo
echo Going down!
exit "$_CODE"' HUP
trap -- 'echo
echo Going down!
exit "$_CODE"' INT
trap -- 'echo
echo Going down!
exit "$_CODE"' QUIT
trap -- 'echo
echo Going down!
exit "$_CODE"' TERM

It has been set up at script's start.
Now sh code:

echo Regular code ...
reboot

Once it hits a reboot, the trap never gets executed!
Advice? :stud

 

[Seeker]

Additionally, which var holds, received signal code?

 

[jilles@]

Traps are not executed while the shell is waiting for a foreground process to terminate, and a successful reboot(8)() never terminates (it eventually calls reboot(2)() which does not return control).

There is no way to access si_code or any other siginfo_t member in a shell script.

 

[Seeker]

Yes, that is why I've replaced it with:
[CMD="shutdown"]... +1[/CMD]