Linux低电量自动关机的实现方法

$ cat /etc/systemd/system/check_shutdown.timer 
[Unit]
De ion=Check if battery is low every 10 minutes

[Timer]
OnCalendar=*:0/10
Persistent=true

[Install]
WantedBy=timers.target

$ cat /etc/systemd/system/check_shutdown.service 
[Service]
ExecStart=
ExecStart=/home/jiajun/.xmonad/ s/shutdown.py

#!/home/jiajun/.py3k/bin/python

import psutil
import logging
import os
import datetime

bat = psutil.sensors_battery()
logging.warn(\"%s: battery status: %s\", datetime.datetime.now(), bat)

if bat.percent < 15:
logging.warn(\"gonna shutdown\")
os.system(\"sudo shutdown -h now\")