start and receive return

[Marco Antonio Abreu <mabreu.ti@...>]

Hello guys. 

 I have a script that accesses a central database, extracts data
and sends it to other databases, depending on the data obtained, replicating the content to small databases, for local access. 

 I'm looking to something to help me do this: I  have a main script that
identifies what have to be done and another one that would be started by
the first to make the copy of the data. By this way I release the first script
to perform another query and, if necessary, start another instance of the
second script, doing a parallel process with the other.

 I can do this process with no difficulty using the command
os.execute( "cmd /b lua.exe script2.lua param1 param2" ) on windows or
os.execute( "/usr/bin/lua script2.lua param1 param2 &" ) on
Linux. However I'm do not know how to identify if the script had completed its execution. 

 Does anyone know or have any ideas? 

Tthanks. 

 [] 's,

-- 
Marco Antonio Abreu
mabreu.ti@gmail.com
System Analist/Developer