tomcatのshellスクリプトの再起動

#!/bin/bash
pid=`lsof -i:8080 |sed -n 2p  | awk '{print $2}'`

echo $pid

if [ "-$pid" = "-"  ];then
	echo "start to restart tomcat at port 8080"
	su -  huawei -c 'sh /home/huawei/tomcat/bin/startup.sh'  
#	cd /home/huawei/tomcat/bin
	#sh startup.sh

fi