Check Battery Status from Terminal in Linux

List device name of the battery: upower -e, I got the name is "/org/freedesktop/UPower/devices/battery_BAT0";

Print the status of the battery: upower -i /org/freedesktop/UPower/devices/battery_BAT0;

Only print the charge persent of the battery: upower -i /org/freedesktop/UPower/devices/battery_BAT0|awk '/^\s*percentage:/ {print $2}'