#!/bin/bash battery() { BAT=`ls /sys/class/power_supply | grep BAT | head -n 1` cat /sys/class/power_supply/${BAT}/capacity } battery_stat() { BAT=`ls /sys/class/power_supply | grep BAT | head -n 1` cat /sys/class/power_supply/${BAT}/status } if [[ "$1" == "--bat" ]]; then battery elif [[ "$1" == "--bat-st" ]]; then battery_stat fi