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#!/bin/bash
for i in 1 1 2 2 3 1; do
< <(ip route show default) read -r _ _ ip _
if [ -n "$ip" ]; then
echo "Trying to ping $ip"
ping -W 2 -c 1 "$ip" &> /dev/null && exit 0
else
echo "No default gateway yet..."
fi
sleep "$i"
done
exit 1
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