nm-online -V (return code: 2)
nm-online: Invalid option. Please use --help to see a list of valid options.
nm-online --help (return code: 0)
Usage:
nm-online [OPTION...]
Waits for NetworkManager to finish activating startup network connections.
Help Options:
-h, --help Show help options
Application Options:
-t, --timeout=<timeout> Time to wait for a connection, in seconds (without the option, default value is 30)
-x, --exit Exit immediately if NetworkManager is not running or connecting
-q, --quiet Don't print anything
-s, --wait-for-startup Wait for NetworkManager startup instead of a connection