Battery-notifier is a project mainly written in Shell, based on the View license.
A simple bash script that notifies you when your battery is 5% or less, shuts down your computer at 1% or less.
A basic battery level notifier.
It checks sysfs entry for BAT0 every $SLEEP_LONG, if you are discharging, it
then checks if the % is < 5, then < 1. If < 5, it notifies you via wall, if
< 1, it shuts down your computer. As a result, the user it runs from needs to
be able to run shutdown -Ph now.
Note: This does not notify you via any GUI popups. Nor will it work in a terminal emulator by itself. GNU screen and tty's will pick up the notification.
Tested in bash v. 4.2. Dependencies: acpi kernel support bc shutdown sysfs wall