#!/bin/sh

awk 'BEGIN { status = ""; efull = 0; enow = 1; pnow = 1; FS="="; }
/POWER_SUPPLY_STATUS/ { status = $2; }
/POWER_SUPPLY_ENERGY_FULL=/ { efull = $2; }
/POWER_SUPPLY_ENERGY_NOW/ { enow = $2; }
/POWER_SUPPLY_POWER_NOW/ { pnow = $2; }
END {   if (status=="Full"||status=="Unknown") {
			print status
		} else {
			h=enow/pnow;
			m=(h-int(h))*60;
			printf("%s%d%% %dh%dm\n",
					substr(status, 0, 1),
					enow/efull*100.0,
					h, m);
		}
	}' \
	/sys/class/power_supply/BAT0/uevent