朗笑江湖

摘要： 今天写了个linux脚本，判断某进程是否已经运行，代码如下：#!/bin/shpid=$(ps aux | grep "java -jar hello.jar" | grep -v "grep" | sed -n '1P' | awk '{print $2}' )if [ -z $pid ] ; then echo "there isn't this process!" elseecho $pid... 阅读全文