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Manfred Lotz wrote:
However, I couldn't find any documentation of io.popen in the reference manual.
To my knowledge, there is no official documentation. Since this function is not supported by all platforms, it is something of a "poor relation". In case you didn't see it, I posted a brief description of io.popen with sample code to this list a few days ago: http://lua-users.org/lists/lua-l/2005-11/msg00071.html -- Aaron