netdev - Find IP address of active interface

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Message-Id: <c7aa5278-5c8d-4d76-96d7-bb52244786e9@www.fastmail.com>
Date:   Mon, 25 Jul 2022 08:48:15 +0800
From:   "Kai Hendry" <hendry@....fi>
To:     netdev@...r.kernel.org
Subject: Find IP address of active interface

Is there an easier way than:

ip route get 8.8.8.8 2>/dev/null|grep -Eo 'src [0-9.]+'|grep -Eo '[0-9.]+'

To figure out the active, Internet routing interface?

Thank you,