Shell实现判断进程是否存在并重新启动脚本分享

#! /bin/bash# author caoxin# time 2012-10-10 # program : 判断进行是否存在，并重新启动function check(){  count=`ps -ef |grep $1 |grep -v "grep" |wc -l`  #echo $count  if [ 0 == $count ];then    nohup python /runscript/working/$1 &  fi}check behaviors.py

#!/bin/bash##调用关闭jboss进程脚本stopMethodServer.sh#打印出当前的jboss进程：grep jboss查询的jboss进程，grep -v "grep" 去掉grep进程jmsThread=`ps -ef | grep gdms | grep jboss | grep -v "grep"`echo $jmsThread#查询jboss进程个数：wc -l 返回行数count=`ps -ef | grep gdms | grep jboss | grep -v "grep" | wc -l`echo $countsec=7#开始一个循环，以判断进程是否关闭for var in 1 2do if [ $count -gt 0 ]; then  #若进程还未关闭，则脚本sleep几秒  echo sleep $sec second the $var time, the JMS thread is still alive  sleep $sec else  #若进程已经关闭，则跳出循环  echo "break"  break fidone#if [ $count -eq 0 ]; then# echo "nohup startMethodServer.sh &"# nohup startMethodServer.sh &#else# echo "It's better to check the thread!!!"#fi#调用启动脚本nohup startMethodServer.sh &