On Fri, Mar 04, 2005 at 04:07:14PM -0500, Michael Davidson wrote:
>     i,o = popen2("ps ax")

   That breaks on SysV. When you want to test if a process is running,
"kill" it with signal 0, and test errno.

Oleg.
--
     Oleg Broytmann            http://phd.pp.ru/            phd@phd.pp.ru
           Programmers don't die, they just GOSUB without RETURN.