From: ientu <lamola@...>
Date: 2005-10-14T00:51:54+09:00
Subject: Re: exec and pipe

By the way the same *?wrong?* code is in the CookBook at
http://pleac.sourceforge.net/pleac_ruby/processmanagementetc.html

.....
# so the "clean and secure" version
readme, writeme = IO.pipe
pid = fork {
    # child
    $stdout = writeme
    readme.close
    exec('find', '..')
}
# parent
Process.waitpid(pid, 0)
writeme.close
while readme.gets do
    # do something with $_
end
.....