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Commands tagged battery from sorted by
Terminal - Commands tagged battery - 12 results
pmset -g batt | egrep "([0-9]+\%).*" -o --colour=auto | cut -f1 -d';'
2012-03-23 23:23:46
User: deshawnbw
Functions: cut egrep
2

adjusting the field "f1" will give you additional information such as

f1 = 98%

f2 = discharging

f3 = 2:02 remaining

NotifyOnBATTERY () { while :; do on_ac_power||notify-send "Running on BATTERY"; sleep 1m; done }
2011-08-26 11:54:16
User: totti
Functions: sleep
Tags: battery notify
0

Works on Laptops, Desktop having communication b/w UPS & CPU

cat /proc/acpi/battery/*/state
acpi -a
pmset -g batt # os x version
2010-06-11 17:25:19
User: sdadh01
Tags: battery acpi
1

If you want to do the same in OS X... grep as necessary for information you need....

cat /proc/acpi/battery/BAT0/state
while true;do clear;echo -n Current\ `grep voltage /proc/acpi/battery/BAT0/state | awk '{print $2" "$3" "$4}'`;for i in `seq 1 5`;do sleep 1;echo -n .;done;done
acpi -b | sed 's/,//g' | awk '{print $3}'
2010-06-11 05:32:57
User: dbbolton
Functions: acpi awk sed
Tags: battery acpi
0

This prints "Charging" or "Discharging". Obviously, this will indicate the status of the AC adapter. The awk part could be from 1-6. I removed the comma because it is useless when only looking at one element of the output array. See acpi(1) for more info.

acpi -b
acpi -V
sudo powertop
2010-04-19 21:59:29
User: rkulla
Functions: sudo
3

Run this command as root to get enough stats. It works on AMD and Intel machines, including desktops. If ran on a laptop it'll give you suggestions on extending your battery life.

You'll need to install PowerTOP if you don't have, via 'apt-get install powertop', etc.

To grep the output use: sudo powertop -d | grep ...

The many command suggestions PowerTOP gives you alone will increase your command-line fu!

cat /proc/acpi/battery/BAT1/info
2009-03-21 06:09:37
User: Vlad003
Functions: cat
Tags: bash battery
-1

Displays all information about your battery. for just capacity, try replacing cat with

grep -F capacity:

Battery number might be BAT0 instead of BAT1. Just run

cd /proc/acpi/battery; ls

and find out what folder is in that directory and replace that name with BAT1