java 的守护进程脚本

#!/bin/sh
while [ 1 ]
do
Tag=`ps -ef|grep 'jar包名称'|grep -v grep|wc -l|awk '{printf $1"
"}'`

if [ $Tag = 0 ]
then
setsid /usr/lib/jvm/jdk-1.8/bin/java -jar jar包名称.jar
fi
done

setsid 后台运行