核心代码：
代码如下:#/bin/bashset -xHOSTS=”nginx mysql php-cgi”for myhost in $HOSTS do count=(`ps aux |grep $myhost |grep -v grep |wc -l`) echo “$myhost” echo “$count”
if [ $count -eq 0 ]; then case $myhost in nginx) cd /usr/local/webserver/nginx/sbin/ ./nginx echo “nginx has be down” sleep 5 my
