shell脚本 打印 tomcat 的pid

#!/bin/sh`
v1="Hello"
v2="world"
v3=${v1}${v2}
echo $v3
pidlist=ps -ef|grep apache-tomcat-7.0.75|grep -v "grep"|awk '{print $2}'
echo $pidlist
echo "tomcat Id list :$pidlist"  //显示pid