linux下nginx启动停止重启控制脚本

这是控制nginx服务的脚本文件，包括控制nginx的启动、重启、停止、平滑重启、对配置文件的额检查。
[root@localhost ~]# cat nginx.sh
#!/bin/env bash
# description:nginx server ###必须加描述
# nginx - this script is used to control nginx service
# processname nginx
# chkconfig: - 85 15
# edit by sun
# date 2014-07-03
# email address 1305627792@qq.com

nginx="/usr/local/nginx/sbin/nginx"
prog="nginx"
conf_file="/usr/local/nginx/conf/nginx.conf"

start() {
if [ `pgrep $prog | wc -l` -eq 0 ];then
if [ -x $nginx ] && [ -f $conf_file ];then
$nginx -c $conf_file
ret=$?
if [ $ret -eq 0 ];then
echo "$prog start successed"
else
echo "$prog start failed"
fi
else
echo "$prog config file not exist"
fi
else
echo "$prog is already started ... "
fi
}

stop() {
if [ `pgrep $prog | wc -l` -ne 0 ];then
killall -9 $prog
ret=$?
if [ $ret -eq 0 ];then
echo "$prog stop successed"
else
echo "$prog stop failed"
fi
else
echo "$prog is already stopped ..."
fi
}

restart() {
stop
sleep 2
start
}

reload() {
if [ `pgrep $prog | wc -l` -ne 0 ];then
pid=`ps -ef | grep $prog | grep master | awk '{print $2}'`
if [ -x $nginx ] && [ -f $conf_file ];then
kill -HUP $pid
ret=$?
if [ $ret -eq 0 ];then
echo "$prog reload successed"
else
echo "$prog reload failed"
fi
else
echo "$prog config file is not exist"
fi
else
echo "$prog is stopped, please start $prog first ..."
fi
}

check() {
if [ -x $nginx ] && [ -f $conf_file ];then
$nginx -t -c $conf_file
ret=$?
if [ $ret -eq 0 ];then
echo "$prog check successed"
else
echo "$prog check failed"
fi
else
echo "$prog program or config file not exit!"
fi
}

case $1 in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
reload)
reload
;;
check)
check
;;
*)
echo "Usage: $0 {start|stop|restart|reload|check}"
esac
运行bash nginx.sh start等操作即可。