#!/bin/bash
k=1
if [ `tput cols` -lt 108 ];then
    k=2
fi

while true; do
<------>n=`cat /proc/net/wireless|grep wlan0 |awk '{print $3}'`.
<------>n=`echo -n $n|head -c $(expr $(echo $n|wc -c) - 2)`
<------>l=$((${n} / ${k}))
<------>echo -n "(${n}/100)"
<------>for i in `seq ${l}`; do
<------><------>echo -n "#"
<------>done
<------>echo ""
<------>sleep 1s;
done