监控程序是否在执行

#!/bin/bash
source $HOME/.bas{h}_{p}rofileint=1while[true];dopro=$(ps -ef | grep java-1.0-SNAPSHOT.jar | grep -v grep)
if [ -z “$pro” ]
then echo “wancheng”
echo “wancheng ok” | mail -s “wancheng ok” 邮箱;
else
echo “程序正在运行…”
fi
sleep 300

done