On Sep 28, 2010, at 3:56 AM, HyperHacker wrote: > I don't think Lua offers a way to read both streams separately without > redirecting one to a pipe or temporary file. Right; lua-ex-api provides io.pipe and os.spawn: http://code.google.com/p/lua-ex-api/ these can be used to make popen2 as described here: http://lua-users.org/wiki/ExtensionProposal e