nm-online - ask NetworkManager whether the network is connected


   nm-online [OPTIONS...]


   nm-online is a utility to find out whether we are online. It is done by
   asking NetworkManager about its status. When run, nm-online waits until
   NetworkManager reports an active connection, or specified timeout
   expires. On exit, the returned status code should be checked (see the
   return codes below).

   By default NetworkManager waits for IPv4 dynamic addressing to complete
   but does not wait for the auto IPv6 dynamic addressing. To wait for
   IPv6 addressing to complete, either (1) change the network connection's
   IPv6 may-fail setting to no, and/or (2) change the IPv6 addressing
   method to manual or dhcp, to indicate that IPv6 connectivity is


   -t | --timeout seconds
       Time to wait for a connection, in seconds. If the option is not
       provided, the default timeout is 30 seconds.

   -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 to complete, rather than waiting
       for network connectivity specifically. Startup is considered
       complete once NetworkManager has activated (or attempted to
       activate) every auto-activate connection which is available given
       the current network state. (This is generally only useful at boot
       time; after startup has completed, nm-online -s will just return
       immediately, regardless of the current network state.)


   nm-online exits with status 0 if it succeeds, a value greater than 0 is
   returned if an error occurs.

       Success -- already online or connection established within given

       Offline or not online within given timeout.

       Unknown or unspecified error.


   nmcli(1), NetworkManager(8).


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