checking the battery from console

[vickey_20]

Hello
I am using Red hat on my laptop and normally playing in the console. As I only plug in the battery supply when the battery is down and going form console to GUI just to check the battery status is quite cumbersome , So was wondering if the status can be checked form the console itself.

[vickey_20]

hey guys fond this link but this command is not present in my OS(red hat 5).

[Mosabama]

I tried apm but it says no apm support in kernel !

[bigtomrodney]

apm was replaced by acpi a few years back. apm was the older power management protocol/standard but this is now handled by acpi. Try

acpi -b
acpi --help

[Freston]

So much interesting stuff in /proc

freston@lappy$ cat /proc/acpi/battery/BAT1/state
present:                 yes
capacity state:          ok
charging state:          discharging
present rate:            0 mA
remaining capacity:      7128 mAh
present voltage:         11100 mV

[vickey_20]

Hey i have come across this file called state in /proc/acpi/BAT0
It contains a file called state which represents the current state of the battery. There is no command like acpi but there is a command called acpid. Whenever i give it on the console I get this message

acpid: can't open /proc/acpi/event : Device or resource busy