Linux Shell 守护进程脚本

编写shell脚本 deamon.sh

#! /bin/bash

while :
do
    #grep -v grep  不显示grep本身
    query=`ps -ef | grep 'python /usr/share/test/hello.py'|grep -v grep |awk '{print $2}'`
    #res=进程ID
    res=$query
    if [ "$res" = "" ]
    then
        python /usr/share/test/hello.py &
        echo "program exited, restart"
    fi
    sleep 10s
done

执行脚本

chmod +x deamon.sh
./deamon.sh &