关于开机启动py脚本

yegeziz

  网上有很多方案,下面我列出我最顺手的防范.
  原理:通过在init.d下创建服务,通过服务来启动脚本
  1.创建服务.

sudo nano /etc/init.d/fan

复制代码

创建服务文件"fan"
fan内容:

#!/bin/bash  
#!/bin/bash  
### BEGIN INIT INFO
# Provides:          any
# Required-Start:    $local_fs $network
# Required-Stop:     $local_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: auto-fan service
# Description:       auto-fan service daemon
### END INIT INFO
case "$1" in  
  start)  
        echo -n "Starting python: "  
        echo "---------------------------------------------------------------------------------" >>/var/log/python  
        date +"! %T %a %D : Starting python ." >>/var/log/python  
        echo "---------------------------------------------------------------------------------" >>/var/log/python  
                echo start  
        python  /home/pi/scp/fan.py & 
                #sh /root/finmonAgent/startpy  
        echo "Done."  
        echo ""  
        echo "---------------------------------------------------------------------------------" >>/var/log/python  
        date +"! %T %a %D : Finished." >>/var/log/python  
        echo "---------------------------------------------------------------------------------" >>/var/log/python  
        touch /var/lock/subsys/python  
        ;;  
  stop)  
        echo -n "Shutting Down python Listeners: "  
        echo "---------------------------------------------------------------------------------" >>/var/log/python  
        date +"! %T %a %D : Shutting Down python." >>/var/log/python  
        echo "---------------------------------------------------------------------------------" >>/var/log/python  
                echo "python"  
        killall -9 finmonAgent.py  
        echo "Done."  
        rm -f /var/lock/subsys/python        
        echo "Done."  
        echo "---------------------------------------------------------------------------------" >>/var/log/python  
        date +"! %T %a %D : Finished." >>/var/log/python  
        echo "---------------------------------------------------------------------------------" >>/var/log/python  
        ;;  
  *)  
  echo "Usage: python { start | stop | restart }"  
  exit 1  
esac  
exit 0  

复制代码

ctrl+o保存
ctrl+x退出
2.重新载入服务

systemctl daemon-reload

复制代码

启动服务

systemctl start fan

复制代码

停止服务

systemctl stop fan

复制代码

重启服务

systemctl restart fan

复制代码

查询服务状态

systemctl status fan

复制代码

设置开机启动

systemctl enable fan

复制代码

2.2方案BBBBB

sudo chmod 755 /etc/init.d/homebridge
sudo update-rc.d homebridge defaults
sudo reboot重启就成功了。

复制代码

[/hide]
3.顺便保存自动风扇的脚本

import RPi.GPIO as GPIO
import time
import commands

T_HIGH = 52
T_LOW = 40
fan_pin = 40
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BOARD)
GPIO.setup(fan_pin, GPIO.OUT)

def get_gpu_temp():
    gpu_temp = commands.getoutput( '/opt/vc/bin/vcgencmd measure_temp' ).replace( 'temp=', '' ).replace( '\'C', '' )
    return  float(gpu_temp)
GPIO.output(fan_pin, 1)#第一次通电,风扇默认开转.
while 1:
    gpu_temp_loop = get_gpu_temp()
    print 'CPU temp:', gpu_temp_loop,'C'
    if gpu_temp_loop > T_HIGH:
        GPIO.output(fan_pin, 1)
    elif gpu_temp_loop < T_LOW:
        GPIO.output(fan_pin, 0)
    time.sleep(5)

复制代码

囧

现在一般用systemd方式启动了吧，还方便一些

yegeziz

Jones 发表于 2017-9-19 20:18
现在一般用systemd方式启动了吧，还方便一些

这....是真的不会,出个教程吧

lidicn

服务更方便，还能监控还能自动重启