====== FreeBSD Как узнать заряд батареи ноутбука из консоли? ======

===== Ноутбук работает от сети. Аккумулятор заряжен. =====

  # acpiconf -i batt
  Design capacity:        2200 mAh
  Last full capacity:     1310 mAh
  Technology:             secondary (rechargeable)
  Design voltage:         10800 mV
  Capacity (warn):        110 mAh
  Capacity (low):         66 mAh
  Low/warn granularity:   264 mAh
  Warn/full granularity:  3780 mAh
  Model number:           UM08A31
  Serial number:
  Type:                   Lion
  OEM info:               SANYO
  State:                  high
  Remaining capacity:     100%
  Remaining time:         unknown
  Present rate:           773 mA (9129 mW)
  Present voltage:        11811 mV

===== Ноутбук работает от аккумулятора. =====

  # acpiconf -i batt
  Design capacity:        2200 mAh
  Last full capacity:     1310 mAh
  Technology:             secondary (rechargeable)
  Design voltage:         10800 mV
  Capacity (warn):        110 mAh
  Capacity (low):         66 mAh
  Low/warn granularity:   264 mAh
  Warn/full granularity:  3780 mAh
  Model number:           UM08A31
  Serial number:
  Type:                   Lion
  OEM info:               SANYO
  State:                  discharging
  Remaining capacity:     95%
  Remaining time:         1:28
  Present rate:           846 mA (9622 mW)
  Present voltage:        11374 mV

===== Ноутбук работает от сети. Аккумулятор заряжается. =====

  # acpiconf -i batt
  Design capacity:        2200 mAh
  Last full capacity:     1310 mAh
  Technology:             secondary (rechargeable)
  Design voltage:         10800 mV
  Capacity (warn):        110 mAh
  Capacity (low):         66 mAh
  Low/warn granularity:   264 mAh
  Warn/full granularity:  3780 mAh
  Model number:           UM08A31
  Serial number:
  Type:                   Lion
  OEM info:               SANYO
  State:                  charging
  Remaining capacity:     95%
  Remaining time:         unknown
  Present rate:           773 mA (9286 mW)
  Present voltage:        12013 mV

===== Настройка SNMP =====

Скрипт отображающий состояние батареи.

  cat Batt_state.sh
  #!/usr/local/bin/bash
  
  echo `acpiconf -i batt | grep "State" | awk '{print $2}'`
  
  exit 0

  # cat Batt_r_capacity.sh
  #!/usr/local/bin/bash
  
  echo `acpiconf -i batt | grep "Remaining capacity" | awk '{print $3}' | sed -e 's/%//'`
  
  exit 0

Для того чтобы SNMP знал откуда брать состояние батареи и в какой oid выкладывать значения. Нужно в файл /usr/local/share/snmp/snmpd.conf добовить такую строчку:

  extend .1.3.6.1.4.1.2021.50.1 r_capacity /scripts/Batt_r_capacity.sh
  extend .1.3.6.1.4.1.2021.50.2 state /scripts/Batt_state.sh

Перезапускаю SNMP

# /usr/local/etc/rc.d/snmpd restart

Проверяем выдаются ли наши значения по запросу: 

Ссылки:\\
https://www.freebsd.org/cgi/man.cgi?query=acpiconf&sektion=8&manpath=freebsd-release-ports