Need help with acpi event string splitting

[Simon Gerber <sige-goEDY2E6dbVyDzI6CaY1VQ@public.gmane.org>]

Dear listreaders

I have a minimal default.sh that used to configure what the acpi events 
do trigger.

#!/bin/sh
# Default acpi script that takes an entry for all actions

set $*

group=${1/\/*/}
action=${1/*\//}

My problem now is that I would like to extend those filter, but I don't 
know how.
My event that I would like to parse looks like this:
ibm/hotkey HKEY 00000080 00001003

I'd like to have a expression that returns the last for digit if the 
group corresponds to ibm and action to hotkey.
hotkeynr=${???}

I tried to write a pcre but I lack the knowledge or it's not a pcre that 
's used here so if someone could point me it would be nice.

Greetings Simon



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