linux - Get Power (Voltage/Watts) with python or bash -

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is there possibility input power (like voltage or watts) of linux operating system in python or bash?

my system running battery , want shut down when battery level gets low supply system.

you might want read files in /sys/class/power_supply/bat*/.

here 2 of more interesting files:

/sys/class/power_supply/bat0/capacity - shows current capacity (e.g. 75%) /sys/class/power_supply/bat0/status - current status (e.g. full/discharging/charging)

the information aggregated in /sys/class/power_supply/bat0/uevent

$ cat /sys/class/power_supply/bat0/uevent power_supply_name=bat0 power_supply_status=unknown power_supply_present=1 power_supply_technology=li-ion power_supply_cycle_count=0 power_supply_voltage_min_design=10800000 power_supply_voltage_now=12464000 power_supply_power_now=0 power_supply_energy_full_design=93960000 power_supply_energy_full=95090000 power_supply_energy_now=94830000 power_supply_capacity=99 power_supply_model_name=45n1173 power_supply_manufacturer=sanyo power_supply_serial_number=31144

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