linux 设置开机自启_@reboot

现在我会两种方式开机自启：

1. /etc/rc.local

(base) [jianming_ge@localhost ~]$ cat /etc/rc.local
#!/bin/bash
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to parallel execution during boot
# this script will NOT be run after all other services.
#
# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure
# that this script will be executed during boot.
 
touch /var/lock/subsys/local
sh /home/jianming_ge/jm_chongli/chongli4_flask/start_43115.sh &

sh /home/jianming_ge/jm_chongli/chongli4_flask/start_43115.sh & 

这就是开机自启最终的命令了。

看下start_43115.sh 下干了什么

 
(base) [jianming_ge@localhost ~]$ cat /home/jianming_ge/jm_chongli/chongli4_flask/start_43115.sh
cd /home/jianming_ge/jm_chongli/chongli4_flask
nohup /home/jianming_ge/miniconda3/bin/gunicorn app:app -c gunicorn_chongli_kevin.py >> flask.log 2>&1 &

修改完成后，不要忘了修改可执行的权限

chmod +x /etc/rc.local

然而，可能是有问题了，因为这种方式是以root用户执行命令，但是它可能没有jianming下面的安装的python环境之类的，所以切换一下用户喽

su - jianming_ge -c "sh /home/jianming_ge/jm_chongli/chongli4_flask/start_43115.sh &"

2. crontab, 没想到把，crontab的方式也可以开机自启

crontab -e 编辑定时任务，@reboot表示重启的时候只执行一次。

具体@的含义查看下面的博文

crontab 的写法(@reboot, @yearly...) - 齐天_大圣 - 博客园

@reboot sh  /root/workplace/shapan_alg/start_all_project_130.sh

同理，我们看下start_all_project_130.sh 中干了些什么?
 

(base) [root@localhost ~]# cat workplace/shapan_alg/start_all_project_130.sh
#!/bin/bash  # 注释
CURRENT_DIR=$(dirname $(readlink -f "$0"))
DATE=$(date +%Y%m%d)  # 注释 不然有回车换行
work_path=$(dirname $(readlink -f $0)) # 当前绝对路径
cd $work_path  # 注释
source ~/.bashrc  # 注释
#conda activate base  # 注释 ---------------
#conda activate py38_18  # 注释 ---------------
conda activate py38_torch180  # 注释 ---------------
dir=$work_path"/log" # 注释
if [ ! -d $dir ] # 注释
  then # 注释
  mkdir  $dir # 注释
  chmod 777 -R ${dir}  # 注释
fi # 注释
# 开启手动触发报警
sh $CURRENT_DIR/start_handle_alarm_130.sh
echo "开启手动触发报警 success!"
# 开启算法层服务
sh $CURRENT_DIR/start_all_docker.sh
echo " 开启算法层服务 docker success!"
 
#sleep 20s
#echo "sleep 20s end start 开启算法层服务 success!"
 
## 开启 5 个摄像头
nohup python $CURRENT_DIR/stream_to_pic/stimulate_pic_multi_process.py >> log/stimulate_pic_multi_process.${DATE}.log 2>&1 &
### 开启摄像头抽帧  虚拟摄像头
nohup python $CURRENT_DIR/stream_to_pic/stimulate_pic_multi_process2.py >> log/stimulate_pic_multi_process2.${DATE}.log 2>&1 &
#sleep 20s
echo " 摄像头拉流 success!"
 
 
#echo "start 开启业务层服务 success!"
 
sleep 20s
# 开启监控摄像头监控的服务
nohup python $CURRENT_DIR/monitor_stream/monitor_stream.py >> log/monitor_stream.${DATE}.log 2>&1 &
echo "摄像拉流监控success!"
# 开启业务层
nohup python $CURRENT_DIR/01demo_thread_130/main.py >> log/01demo_thread_main.${DATE}.log  2>&1 &
echo "开启业务层success!"(base) [root@localhost ~]#

备注：这里同时也要注意用户的问题，

我的是因为只有root一个用户 所以没问题

crontab -e -u jianming_ge 可以切换用户，编辑jianming_ge 用户下的定时任务

在某个用户下查看crontab的命令 具体我也没研究，猜测是这样的。

持续的ping，看其是否连同

ping ip -t