#!/bin/bash # Copyright (C) 2014 Alexander Keller <github@nycroth.com> # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. #------------------------------------------------------------------------ INTERFACE="${BLOCK_INSTANCE:-wlan0}" #------------------------------------------------------------------------ # As per #36 -- It is transparent: e.g. if the machine has no battery or wireless # connection (think desktop), the corresponding block should not be displayed. [[ ! -d /sys/class/net/${INTERFACE}/wireless ]] || [[ "$(cat /sys/class/net/$INTERFACE/operstate)" = 'down' ]] && exit #------------------------------------------------------------------------ QUALITY=$(grep $INTERFACE /proc/net/wireless | awk '{ print int($3 * 100 / 70) }') #------------------------------------------------------------------------ echo $QUALITY% # full text echo $QUALITY% # short text # color if [[ $QUALITY -ge 80 ]]; then echo "#00FF00" elif [[ $QUALITY -lt 80 ]]; then echo "#FFF600" elif [[ $QUALITY -lt 60 ]]; then echo "#FFAE00" elif [[ $QUALITY -lt 40 ]]; then echo "#FF0000" fi