/etc/systemd/system/rc-local.service 文件内容：

 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

/etc/rc.local 文件内容

#!/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。" > /home/some/Qexo/test.log
a=`lsof -i:8000 | wc -l`
if [ "$a" -eq "0" ];then
       echo "start nohup django:8000" >> /home/some/Qexo/test.log
             nohup  /usr/bin/python3 /home/some/Qexo/manage.py runserver 0.0.0.0:8000 > cmdb.log 2>&1 &
       else
       echo "8000 端口被占用" >> /home/some/Qexo/test.log
fi
#source/home/some/Qexo/
#nohup /usr/bin/python3 /home/some/Qexo/manage.py runserver 0.0.0.0:8000 > cmdb.log 2>&1 &
echo "看到这行字，说明 django.sh 执行过。" >> /home/some/Qexo/test.log
exit 0

重启后，sudo systemctl status rc-local,报如下错误

 rc-local.service - /etc/rc.local Compatibility
    Loaded: loaded (/etc/systemd/system/rc-local.service; enabled; preset: enabled)
   Drop-In: /usr/lib/systemd/system/rc-local.service.d
            └─debian.conf
    Active: failed (Result: exit-code) since Tue 2024-07-23 09:22:23 CST; 15min ago
  Duration: 236ms
   Process: 3617 ExecStart=/etc/rc.local start (code=exited, status=0/SUCCESS)
  Main PID: 3621 (code=exited, status=1/FAILURE)
       CPU: 344ms

7 月 23 09:22:23 some-Ubuntu23 systemd[1]: Starting rc-local.service - /etc/rc.local Compatibility...
7 月 23 09:22:23 some-Ubuntu23 systemd[1]: Started rc-local.service - /etc/rc.local Compatibility.
7 月 23 09:22:23 some-Ubuntu23 systemd[1]: rc-local.service: Main process exited, code=exited, status=1/FAILURE
7 月 23 09:22:23 some-Ubuntu23 systemd[1]: rc-local.service: Failed with result 'exit-code'.