OpenVPN ctl can be started with command line args to make few operations from the console.
openvpnctl start network-name
openvpnctl stop network-name
openvpnctl stats network-name
openvpnctl log network-name
start command
start command waits until initialization is completed. It prompts user for password and so on if required.
If you use --management-signal option you are out of luck with CLI. Upon successfull initalization it disconnects (and kills VPN connection).