Linux(CentOS)下设置nginx开机自动启动（2个办法）
首先，在linux系统的/etc/init.d/目录下创建nginx文件，使用如下命令：vim /etc/init.d/nginx
在脚本中添加如下命令：
#!/bin/sh
#
# nginx
- this script starts and stops the nginx daemon
#
# chkconfig:
- 85 15
# description:NGINX
is an HTTP(S) server, HTTP(S) reverse \
# proxy and IMAP
/POP3 proxy server
# processname: nginx
# config:
/etc/nginx/nginx.conf
# config:
/etc/sysconfig/nginx
# pidfile:
/var/run/nginx.pid
# Source function library.
.
/etc/rc.d/init.d/functions
# Source networking configuration.
.
/etc/sysconfig/network
# Check that networking
is up.
[
"$NETWORKING" = "no" ] && exit 0
nginx
="/usr/sbin/nginx"
prog
=$(basename $nginx)
NGINX_CONF_FILE
="/etc/nginx/nginx.conf"
[
-f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx
lockfile
=/var/lock/subsys/nginx
make_dirs() {
# make required directories
user
=`$nginx -V 2>&1 | grep "configure arguments:" | sed 's/[^*]*--user=\([^ ]*\).*/\1/g' -`
if [ -z "`grep $user /etc/passwd`" ]; then
useradd
-M -s /bin/nologin $user
fi
options
=`$nginx -V 2>&1 | grep 'configure arguments:'`
for opt in $options; do
if [ `echo $opt | grep '.*-temp-path'` ]; then
value=`echo $opt | cut -d "=" -f 2`
if [ ! -d "$value" ]; then
# echo "creating" $value
mkdir -p $value && chown -R $user $value
fi
fi
done
}
start() {
[ -x $nginx ] || exit 5
[ -f $NGINX_CONF_FILE ] || exit 6
make_dirs
echo -n $"Starting $prog: "
daemon $nginx -c $NGINX_CONF_FILE
retval=$?
echo
[ $retval -eq 0 ] && touch $lockfile
return $retval
}
stop() {
echo -n $"Stopping $prog: "
killproc $prog -QUIT
retval=$?
echo
[ $retval -eq 0 ] && rm -f $lockfile
return $retval
}
restart() {
configtest || return $?
stop
sleep 1
start
}
reload() {
configtest || return $?
echo -n $"Reloading $prog: "
killproc $nginx -HUP
RETVAL=$?
echo
}
force_reload() {
restart
}
configtest() {
$nginx -t -c $NGINX_CONF_FILE
}
rh_status() {
status $prog
}
rh_status_q() {
rh_status >/dev/null 2>&1
}
case "$1" in
start)
rh_status_q && exit 0
$1
;;
stop)
rh_status_q || exit 0
$1
;;
restart|configtest)
$1
;;
reload)
rh_status_q || exit 7
$1
;;
force-reload)
force_reload
;;
status)
rh_status
;;
condrestart|try-restart)
rh_status_q || exit 0
;;
*)
echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
exit 2
esac
这个脚本来自nginx官方，脚本地址：http://wiki.nginx.org/RedHatNginxInitScript ，不过要注意，如果你是自定义编译安装的nginx，需要根据您的安装路径修改下面这两项配置：
nginx=”/usr/sbin/nginx” 修改成nginx执行程序的路径。
NGINX_CONF_FILE=”/etc/nginx/nginx.conf” 修改成配置文件的路径。
保存脚本文件后设置文件的执行权限：
chmod a+x /etc/init.d/nginx
然后，就可以通过该脚本对nginx服务进行管理了：
/etc/init.d/nginx start
/etc/init.d/nginx stop
使用chkconfig进行管理
上面的方法完成了用脚本管理nginx服务的功能，但是还是不太方便，比如要设置nginx开机启动等。这时可以使用chkconfig来设置。
先将nginx服务加入chkconfig管理列表：
chkconfig --add /etc/init.d/nginx
加完这个之后，就可以使用service对nginx进行启动，重启等操作了。
service nginx start
service nginx stop
设置终端模式开机启动：
chkconfig nginx on
参考自：http://blog.csdn.net/boyish_/article/details/51768784
==============================================================
下面是另外个脚本：
在脚本中添加如下命令：
#!/bin/bash # nginx Startup script
for the Nginx HTTP Server
# it
is v.0.0.2 version.
# chkconfig:
- 85 15
# description: Nginx
is a high-performance web and proxy server.
# It has a lot of features, but it
's not for everyone.
# processname: nginx
# pidfile: /var/run/nginx.pid
# config: /usr/local/nginx/conf/nginx.conf
nginxd=/usr/local/nginx/sbin/nginx
nginx_config=/usr/local/nginx/conf/nginx.conf
nginx_pid=/var/run/nginx.pid
RETVAL=0
prog="nginx"
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0
[ -x $nginxd ] || exit 0
# Start nginx daemons functions.
start() {
if [ -e $nginx_pid ];then
echo "nginx already running...."
exit 1
fi
echo -n $"Starting $prog: "
daemon $nginxd -c ${nginx_config}
RETVAL=$?
echo
[ $RETVAL = 0 ] && touch /var/lock/subsys/nginx
return $RETVAL
}
# Stop nginx daemons functions.
stop() {
echo -n $"Stopping $prog: "
killproc $nginxd
RETVAL=$?
echo
[ $RETVAL = 0 ] && rm -f /var/lock/subsys/nginx /var/run/nginx.pid
}
#>
reload() {
echo -n $"Reloading $prog: "
#kill -HUP `cat ${nginx_pid}`
killproc $nginxd -HUP
RETVAL=$?
echo
}
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
reload)
reload
;;
restart)
stop
start
;;
status)
status $prog
RETVAL=$?
;;
*)
echo $"Usage: $prog {start|stop|restart|reload|status|help}"
exit 1
esac
exit $RETVAL
注意配置里的路径，需要将路径改为自己机器的相应路径。
接着，设置文件的访问权限：
chmod a+x /etc/init.d/nginx ;(a+x参数表示 ==> all user can execute所有用户可执行)
最后将ngix加入到rc.local文件中，这样开机的时候nginx就默认启动了
vi /etc/rc.local
添加
/etc/init.d/nginx start
保存并退出
下次重启就会生效，实现nginx的自启动。
参考自，感谢原作者：http://blog.163.com/qsc0624@126/blog/static/140324073201312734548701/
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