#!/bin/bash. /etc/init.d/functionsfunction usage() {  echo $"usage:$0 {start|stop|restart}"  exit 1}function start() {  /usr/local/nginx/sbin/nginx   sleep 1  if [ `netstat -antlpe | grep nginx | wc -l` -ge 0 ];then action "nginx is started." /bin/true   else action "nginx is started." /bin/false  fi}function stop() {  killall nginx &>/dev/null  sleep 1  if [ `netstat -antlpe | grep nginx | wc -l` -eq 0 ];then action "nginx is stopped." /bin/true  else action "nginx is stopped." /bin/false  fi}function main() {  if [ $# -ne 1 ];then usage $0  fi  case $1 in  start) start ;; stop) stop ;; restart) stop start ;; *) usage $0 ;;  esac}main $*