#/bin/bash
while true;
do
count=`ps -ef | grep test.jar | grep -v grep|wc -l`
if [ ${count} -lt 1 ]; then
nohup java -jar xxx.jar >log.out 2>&1 &
else
echo “process is running”
fi
sleep 3
done
Linux Shell脚本：自动读取pid并关闭进程
查询进程信息
ps -ef|grep elasticsearch
过滤掉grep进程
ps -ef|grep elasticsearch|grep -v grep
提取pid(awk以空格分割，显示第二个变量即为pid)
ps -ef|grep elasticsearch|grep -v grep|awk ‘{print $2}’
根据pid kill掉该进程
完整脚本如下所示
