#!/bin/bash
#
# battery status script
#

BATTERY=/proc/acpi/battery/BAT1

BATSTATE=`grep "^charging state" $BATTERY/state | awk '{ print $3 }'`
echo $BATSTATE

# this if causes an error message... but why?

if ["$BATSTATE" = "discharging"]; then
echo "I'm on battery"
else
echo "I'm on mains"
fi