Shell Script + Google Chart Tools / Image Charts – Parte 3

Medidor do nível de sinal de uma determinada interface de rede sem fio.

Script 1- Retorna o link do chart

#!/bin/bash
#
#
sinal()
{
interface="wlan0"
nivel="$(cat /proc/net/wireless | grep "$interface" | awk '{print $3}' | tr -d ".")"
echo "http://chart.apis.google.com/chart?chxr=0,0,100&chxt=y&chs=700x240&cht=gm&chds=0,100&chd=t:"$nivel"&chl="$nivel"&chtt="$(hostname)"+wifi+signal+level"
}
sinal
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