[Python知识库]ubuntu18.04实现python程序自启动

一、准备好自己的程序
如一个简单的保存程序 testmain.py

# 配置输出文件的路径。
path = '/home/Demo/test/a.txt'
# 打开文件
f = open(path, "w+")
# 文件内写入“文本内容”四个字
f.write('保存内容')
# 关闭文件

二、建立rc-local.service文件
1、建立rc-local.service文件

sudo vi /etc/systemd/system/rc-local.service

2.在打开的文件中增加[Install] WantedBy=multi-user.target

[Unit]
Description=/etc/rc.local Compatibility
ConditionPathExists=/etc/rc.local
 
[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
StandardOutput=tty
RemainAfterExit=yes
SysVStartPriority=99
 
[Install]
WantedBy=multi-user.target

3. 创建rc.local文件

sudo vi /etc/rc.local

4. 在打开的文件中echo “看到这行字，说明添加自启动脚本成功。”>/usr/local/test.log 下面添加自己的启动内容

#!/bin/sh -e
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
echo "看到这行字，说明添加自启动脚本成功。">/usr/local/test.log
#后台启动程序
python3 /home/test/Demo/testmain.py
exit 0

5. 给rc.local添加权限

sudo chmod +x /etc/rc.local

6. 开机重启
   查看是否有文件保存

参考文档 1