On 5 November 2015 00:53:25 CET, Walter Dnes <waltd...@waltdnes.org> wrote:
> The attached script requires "make menuconfig" to have
>
>Power management and ACPI options --->
>[*] ACPI (Advanced Configuration and Power Interface) Support --->
><*> Battery
>
>or CONFIG_ACPI_BATTERY enabled if you do .config manually.
>
> The script reads /sys/class/power_supply/BAT1/uevent on a laptop and
>calculates the percentage of battery charge. Because it only reads
>from
>/sys, and does not write, it can be run by a regular user. The script
>is primitive, and has to be stopped with {CTRL}{C}.
>
> The script runs in text mode, and can run in xterm or even a pure text
>console. I've removed the #!/bin/bash at the top of the attached file
>and chmod'ed it non-executable. The mailing list software seems to
>reject any such attachments. You can source the file as is, or chmod
>it
>executable, and insert #!/bin/bash at the top. Note that there is an
>ANSI escape sequence in the script, to keep the output in one location.
>Regular cut-and-paste can fail if you try to copy from the screen.
FYI, on my laptop it's BAT0, not BAT1.
--
Joost
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
