How to run a script at shutdown with Snow Leopard?

Question

I want to run a script when I shutdown or restart my iMac, running Snow Leopard.

I read somewhere that one could use the /etc/rc.shutdown.local for this, but it is not working for me.

For example, I put the following lines on it:

#!/bin/sh
/usr/bin/osascript -e "set volume with output muted"

If I run:

source /etc/rc.shutdown.local

it does indeed mute the sound. However, if I have the sound on and make a restart of the OS, the sound will still be on. Which I guess it means the script was not called.

Any ideas?

UPDATE: It is actually working now. I think it's just because the correct name is rc.local.shutdown and not rc.shutdown.local.

Answer 1

It is actually working now. I think it's just because the correct name is rc.local.shutdown and not rc.shutdown.local.

Answer 2

Use the following script:

#!/usr/bin/env bash
trap 'osascript -e "say \"hello\""' TERM
while true; do
    sleep 10
done

Start it via cron or launchd, whichever you prefer.

Try killing it using kill pid, which pid being its process ID you learn from ps ax.

---

I don't want to shut down right now to test it propertly, but it should work.

Answer 3

I'll start off by saying I'm a noob with AppleScript. So for the benefit of other folks starting off as well - I'm posting the following which is a minor variation of what the author put in.

#!/bin/sh
/usr/bin/osascript -e "set volume 0.5"