A little code snippet to see the battery status in [wmii][]. Tested with Linux kernel 2.6.24. [wmii]: http://www.suckless.org/wmii/
acpi() {
max=$(awk '/full capacity/ {print $4}' /proc/acpi/battery/BAT1/info)
cur=$(awk '/remaining capacity/ {print $3}' /proc/acpi/battery/BAT1/state)
st=$(awk '/charging state/ {print $3}' /proc/acpi/battery/BAT1/state)
per=$(echo "scale=2; 100/($max/$cur)" | bc)
[ "$st" = "discharging" ] && echo "B:$per" || echo "C:$per"
}
# Status Bar Info
status() {
echo -n $(uptime | sed 's/.*://; s/,//g') '|' $(date) '|'
$(acpi)
}