方法1 /lib/systemd/system

1.1.修改/lib/systemd/system/rc-local.service，如果没有需要新建，添加[Install]的内容，文件内容为

[Unit]
Description=/etc/rc.local Compatibility
Documentation=man:systemd-rc-local-generator(8)
ConditionFileIsExecutable=/etc/rc.local
After=network.target[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
RemainAfterExit=yes
iGuessMainPID=no[Install]
WantedBy=multi-user.target
Alias=rc-local.service

1.2.创建自启动脚本

$ sudo vim /etc/rc.local

  1 #!/bin/sh2 #/ai/ai_vehicle_peccancy/start.sh3 cd /ai/ai_vehicle_peccancy/4 nohup ./ai_vehicle_peccancy >/dev/null 2>&1 &5 exit 0

1.3.给权限

$ sudo chmod 755 /etc/rc.local

1.4.启动服务

sudo systemctl enable rc-local
sudo systemctl start rc-local.service
sudo systemctl status rc-local.service

1.5.重启测试

sudo reboot

参考文章：
Ubuntu22.04开机自启脚本

方法2 /etc/systemd/system

2.1 新建ai-object.service文件，文件内容为

[Unit]
Description=demo
After=network.target nginx.service[Service]
WorkingDirectory=/home/ubuntu/AIServer/object
Type=forking
ExecStart=/home/ubuntu/AIServer/object/start.sh
ExecStop=/home/ubuntu/AIServer/object/stop.sh
PrivateTmp=true[Install]
WantedBy=multi-user.target

其中start.sh为目标程序的启动脚本，stop.sh为目标程序的关闭脚本。

2.2 创建install_service.sh脚本，内容为

#! /bin/bash
#  program : start program
chmod a+x start.sh
chmod a+x stop.sh
chmod a+x AIServer-object
cp -n ai-object.service /etc/systemd/system
chmod a+x /etc/systemd/system/ai-object.service
systemctl enable ai-object.service
systemctl start ai-object.service
echo `systemctl status ai-object.service`

2.3 启动服务
运行install_service.sh脚本，完成服务安装和自启动配置。

$ ./install_service.sh

注意：install_service.sh脚本只需要在安装时执行一次即可，后续服务器开机后会自动启动AI服务。
启动成功时控制台会输出如下信息：

	● ai-objtect.service - demoLoaded: loaded (/etc/systemd/system/ai-objtect.service; enabled; vendor preset: enabled)Active: active (running) since Fri 2022-08-19 10:43:39 CST; 4min 39s agoProcess: 11563 ExecStart=/home/ubuntu/AIServer/object/start.sh (code=exited, status=0/SUCCESS)
Main PID: 11573 (AIServer)Tasks: 21 (limit: 18744)Memory: 10.6MCGroup: /system.slice/ai-objtect.service└─11573 ./AIServer8月 19 10:43:39 ubuntu-08 systemd[1]: Starting demo...
8月 19 10:43:39 ubuntu-08 start.sh[11563]: [2022-08-19 10:43:39][INFO]  AIServer start
8月 19 10:43:39 ubuntu-08 systemd[1]: Started demo.

参考文章：
Linux下使用systemctl 开机自动启动项目