The No-Nonsense battery indicator for tmux (that mostly works !)

batt.sh

#
#            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
#                    Version 2, March 2014
#
# Copyright (C) 2014 Pratheek (contact me via github)
#
# Everyone is permitted to copy and distribute verbatim or modified
# copies of this license document, and changing it is allowed as long
# as the name is changed.
#
#            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
#   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
#
#  0. You just DO WHAT THE FUCK YOU WANT TO.


#!/usr/bin/env bash

BATPATH=/sys/class/power_supply/<YOUR DEVICE'S BATTERY>
STAT=$BATPATH/status
stat=$(cat $STAT)

FULL=$BATPATH/charge_full
NOW=$BATPATH/charge_now

full=$(cat $FULL)
curr=$(cat $NOW)

BAT_STAT=$( bc -l <<< "$curr / $full * 100" | cut -c -5 )
echo $stat\:$BAT_STAT