From: Ferenc Engard <ferenc@...>
Date: 2004-01-18T21:39:41+09:00
Subject: running external process?

Hi all,

Is there a simple way to spawn an external program, feed its stdin, and
get its stdout?

The problem with popen is, if I want to feed a few MB's of input to it,
then it hangs (I suspect that its stdout IO buffer is full) before I
could read out its stdout on the next line. So, the following do not
work:

io=IO.popen("externalfilter")
io.write(verybigstring)
result=io.read

Thanks,
Ferenc