shell监控进程是否存在

1.直接给代码：我这个是两个程序。多半要写成函数

[root@java1 src]# cat checkprocess.sh
#!/bin/bash
checkprocess()
{
ps -ef|grep $1|grep -v grep
if [ $? != 0 ];then
systemctl start $2
else
echo "it's running"
fi
}
checkprocess /opt/infosys-pc/infosys-pc-1.1.0.RELEASE.jar jarpc>/dev/null
checkprocess /opt/infosys-nc-sync/infosys-nc-sync-1.1.0.RELEASE.jar jarnc>/dev/null

2.来个计划任务：

[root@java1 ~]# crontab -l
* * * * * /usr/local/src/checkprocess.sh
* * * * * sleep 10;/usr/local/src/checkprocess.sh
* * * * * sleep 20;/usr/local/src/checkprocess.sh
* * * * * sleep 30;/usr/local/src/checkprocess.sh
* * * * * sleep 40;/usr/local/src/checkprocess.sh
* * * * * sleep 50;/usr/local/src/checkprocess.sh

成功！！！！！