1.shell通过一个while-do循环,用ps -ef|grep检查loader进程是否正在运行,如果没有运行,则启动,

这样就保证崩溃挂掉的进程重新被及时启动。

注意2点:1.ps -ef |grep 一个进程时必须加上其路径,否则容易grep到错误的结果;

             2.必须用-v 从结果中去除grep命令自身,否则结果非空。

#!/bin/sh 

while
do 
echo "Current DIR is " $PWD 

stillRunning=$(ps -ef |grep "$PWD/loader" |grep -v "grep") 


if [ "$stillRunning" ] ; then 
echo "TWS service was already started by another way" 


echo "Kill it and then startup by this shell, other wise this shell will loop out this message annoyingly" 


kill -9 $pidof $PWD/loader 
else 


echo "TWS service was not started" 


echo "Starting service ..." 
$PWD/loader 


echo "TWS service was exited!" 


fi 
sleep 10 


done 

    如果启动此shell时发现进程以及存在,说明已别的方式启动了进程,那么他会持续提醒找到进程,

解决办法是,只要一经发现是其他方式启动此进程即kill掉(kill -9 $PWD/loader)

 

posted on 2019-06-30 09:45  arvin_feng  阅读(804)  评论(0编辑  收藏  举报