p = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT, close_fds=True)
(grep_in, grep_out ) = (p.stdin, p.stdout)
p = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT, close_fds=True)
(grep_in, grep_out ) = (p.stdin, p.stdout)