Wait for lans

wait_for_lans.sh

#!/usr/bin/env bash

# Maximum wait time in seconds
timeout=300
elapsed=0

while [[ $elapsed -lt $timeout ]]; do
    up0=$(cat /sys/class/net/wlan0/operstate 2>/dev/null)
    up1=$(cat /sys/class/net/wlan1/operstate 2>/dev/null)

    if [[ "$up0" == "up" && "$up1" == "up" ]]; then
        echo "[wait-for-wlans] wlan0 and wlan1 are up"
        exit 0
    fi

    echo "[wait-for-wlans] Waiting for wlan0/wlan1..."
    sleep 2
    elapsed=$((elapsed + 2))
done

echo "[wait-for-wlans] Timeout waiting for wlan0 and wlan1"
exit 1