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NetworkManager/examples/dispatcher/70-wifi-wired-exclusive.sh

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#!/bin/bash
export LC_ALL=C
# This dispatcher script makes WiFi mutually exclusive with
# wired networking. When a wired interface is connected,
# WiFi will be set to airplane mode (rfkilled). When the wired
# interface is disconnected, WiFi will be turned back on.
enable_disable_wifi ()
{
result=$(nmcli dev | grep "802-3-ethernet" | grep -w "connected")
if [ -n "$result" ]; then
nmcli radio wifi off
#with older nmcli, use nmcli nm wifi off
else
nmcli radio wifi on
#with older nmcli, use nmcli nm wifi on
fi
}
if [ "$2" = "up" ]; then
enable_disable_wifi
fi
if [ "$2" = "down" ]; then
enable_disable_wifi
fi