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#!/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/>.
#------------------------------------------------------------------------
if [[ -z "$INTERFACE" ]] ; then
INTERFACE="${BLOCK_INSTANCE:-wlp3s0}"
fi
#------------------------------------------------------------------------
# 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/${INTERFACE}/wireless ]] && exit
# If the wifi interface exists but no connection is active, "down" shall be displayed.
if [[ "$(cat /sys/class/net/$INTERFACE/operstate)" = 'down' ]]; then
echo "down"
echo "down"
echo "#FF0000"
exit
fi
#------------------------------------------------------------------------
QUALITY=$(grep $INTERFACE /proc/net/wireless | awk '{ print int($3 * 100 / 70) }')
#------------------------------------------------------------------------
echo `nmcli -t -f NAME connection show --active | head -n 1` $QUALITY% # full text
echo $QUALITY% # short text
# color
if [[ $QUALITY -ge 80 ]]; then
echo "#00FF00"
elif [[ $QUALITY -ge 60 ]]; then
echo "#FFF600"
elif [[ $QUALITY -ge 40 ]]; then
echo "#FFAE00"
else
echo "#FF0000"
fi