answer:From Mr. Laureth, who once made a living on the UNIX command line: “While I used csh instead of bash, when I did shell scripting, I believe it does this: 1. Pause for 1 second 2. Check if openvpn is running; if it is, kill it. 3. If someone logs on, add the username and password to the file /tmp/openvpncl/auth.conf . 4. Start openvpn. 5. Loop back to the sleep. Either I’m way off, or this is a way to collect usernames and passwords of third parties. It’s hard to come up with a legitimate reason to do this.”