shell脚本---nginx方便启停脚本

在linux6以下操作系统中，未使用yum安装nginx时，搭建完毕好了后，会出现需要到启动文件夹中执行命令启动，我们这里用脚本实现，可以在服务器上面使用/etc/init.d/nignx start 或者service nginx start等命令

cd /etc/init.d/

vi nignx

#!/bin/bash
# chkconfig: - 13 68
#注意你安装的nignx实际的安装路径
NGINX_BIN="/usr/local/nginx/sbin/nginx"
NGINX_CONF="/usr/local/nginx/conf/nginx.conf"
NGINX_PID="/usr/local/nginx/logs/nginx.pid"
NETSTAT="/bin/netstat"
alter=$1
prog=nginx
#load system function
. /etc/rc.d/init.d/functions
#function:echo ok or error
function if_no {
if [ $2 == 0 ]; then
echo -n $"$1 ${prog}:" && success && echo
else
echo -n $"$1 ${prog}:" && failure && echo
fi
}
#start nginx启动模块
function start {
if [ -s ${NGINX_PID} ]; then
echo "nginx already running" 
else
if [ `${NETSTAT} -tnpl | grep nginx | wc -l` -eq 0 ]; then
rm -f ${NGINX_PID} 2>/dev/null
${NGINX_BIN} -c ${NGINX_CONF} 
if_no start $?
        else
${NETSTAT} -tnpl | grep nginx | awk '{ print $7}' | cut -d '/' -f 1 > ${NGINX_PID}
if_no start $?
fi
fi
}
#stop nginx停止
function stop {
if [ -s ${NGINX_PID} ]; then
cat ${NGINX_PID} | xargs kill -QUIT
if_no stop $?
else
        if [ `${NETSTAT} -tnpl | grep nginx | wc -l` -eq 0 ]; then
rm -f ${NGINX_PID} 2>/dev/null
if_no stop 0
else
rm -f ${NGINX_PID} 2>/dev/null
kill `${NETSTAT} -tnpl | grep nginx | awk '{ print $7}' | cut -d '/' -f 1`
if_no stop $?
fi
fi
}
function restart { #重启
if [ -s ${NGINX_PID} ]; then
cat ${NGINX_PID} | xargs kill -HUP
if_no restart $?
else
stop
sleep 1
start
fi
}
function status {
${NETSTAT} -tnpl | grep nginx | grep LISTEN
[ $? == 0 ] && echo "nginx is running" || echo "nginx is not running"
}
function configtest {
${NGINX_BIN} -t
}
case $alter in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
status)
status
;;
configtest)
configtest
;;
*)
echo "use:${NGINX} {start|stop|restart|status|configtest}"
;;
esac

给予脚本执行权限

chmod 755 nignx