shell脚本判断进程是否存在，并重新启动

#!/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 $count

sec=7
#开始一个循环，以判断进程是否关闭

for var in 1 2
do
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
fi
done

#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 &