How to automatically enable and disable WiFi based on Ethernet connection with NetworkManager #wifi #networkmanager #commandlinefu

how_automatically_enable_disable_wifi_with_ethernet_nwm.md

How to automatically enable and disable WiFi based on Ethernet connection with NetworkManager

Courtesy of distroguy blog post

cat << \EOF |sudo tee /etc/NetworkManager/dispatcher.d/70-wifi-wired-exclusive.sh
#!/bin/bash
export LC_ALL=C

enable_disable_wifi ()
{
    result=$(nmcli dev | grep "ethernet" | grep -w "connected")
    if [ -n "$result" ]; then
        nmcli radio wifi off
    else
        nmcli radio wifi on
    fi
}

if [ "$2" = "up" ]; then
    enable_disable_wifi
fi

if [ "$2" = "down" ]; then
    enable_disable_wifi
fi
EOF

sudo chown root:root /etc/NetworkManager/dispatcher.d/70-wifi-wired-exclusive.sh
sudo chmod 744 /etc/NetworkManager/dispatcher.d/70-wifi-wired-exclusive.sh

sudo systemctl restart NetworkManager

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Links

• distroguy blog post