shell() in a separate thread with callback message at exit?

[Joel Guillod]

> Here is an example script that does a ping. The handler includes the
> post-processing of the result, but you can just ignore that.
>
> function checkPing pIP
> ...
>    put "ping -c1 -n "  & pIP into tShellCmd
>    put " > " & tFileName & " 2>&1 &" after tShellCmd

Thank you a lot Sarah. Your code let me discover the "wait .. with  
messages" which I have never been aware of (the old Hypercard  
practice?). This can actually do the job I am searching for. Also,  
your example raises two questions:

1.- Is there somewhere some documentation on synchronous/asynchronos  
parallel/threaded Transcript execution? I would like to learn about  
other such great features native in Transcript...

2.- I understand the shell command you wrote up to "ping -c1 -n  
192.168.0.1" and even the "&" mandatory for executing the shell in a  
separate thread but I dont understand the "2>&1 &". Could you  
explain? Do you have a good MacOSX/Un*x tutorial on the shell commands?

Best to you,

Joël