~ $ cat bin/etat_bat.sh 
#!/bin/sh
# 
exit 0
etat=`cat /proc/acpi/battery/BAT*/state | sed -n '4,5p' | awk '{print $3}' | tr '\n' ', ' `
echo $etat
python -c "a,b=$etat
import math
c=float(b)/float(a)
h=math.floor(c)
m=round((c-h)*60)
print '%2ih%2i' % (h,m)
"