由于在shell脚本中直接使用&符号和python程序有冲突,不能正常的进入后台执行python(多番尝试python xxx.py &,后面的&总是不能正常识别.系统centos7).所以需要用到几种不同的方式来启动python

• nohup

nohup python run_server.py

• ()

(python run_server.py)

• screen 推荐的方式

screen python run_server.py

脚本中使用

#!/bin/bash

#  echo "/bin/bash /opt/startjms.sh" and chmod +x /etc/rc.d/rc.local 

# env

if [ -f /etc/bashrc ]; then

	. /etc/bashrc

fi

PATH=$PATH:$HOME/bin

export PATH

source /opt/py3/bin/activate

#open screen terminal

screen_name1="server1"

screen -dmS $screen_name1

screen_name2="server2"

screen -dmS $screen_name2

#trans cmd to screen terminal

screen -x -S $screen_name1 -p 0 -X stuff "python /opt/$screen_name1/run_server.py all\n"

cmd="python /opt/$screen_name2/run_server.py"

screen -x -S $screen_name2 -p 0 -X stuff "$cmd"

screen -x -S $screen_name2 -p 0 -X stuff $'\n'

• systemd
  
  这些都不能的话,老老实实用systemctl吧