1.環境：
centos7
nginx: nginx-1.12.2.tar.gz

2.下載nginx:

wget http://nginx.org/download/nginx-1.12.2.tar.gz

3.解壓安裝包

tar zxvf nginx-1.12.2.tar.gz

4.配置安裝路徑，cd nginx-1.12.2下

 ./configure --prefix=/usr/local/nginx

提示缺少包，要安裝pcre ,pcre-devel,zlib,zlib-devel,那依次安裝

yum install pcre
yum install pcre-devel
yum install
 
 zlib
yum install zlib-devel

5. 編譯

make & make install

6.啟動Nginx,切換到/usr/local/nginx 下

看到如下4個目錄
./
….conf 配置檔案
… html 網頁檔案
…logs 日誌檔案
…sbin 主要二進位制程式

./sbin/nginx

7. 檢視啟動的程序和埠

[root@localhost nginx]# ps -ef|grep nginx
root      16050      1  0 00:44 ?        00:00:00 nginx: master process ./sbin/nginx
nobody    16051
 
  16050  0 00:44 ?        00:00:00 nginx: worker process
root      16063   6097  0 00:44 pts/1    00:00:00 grep --color=auto nginx
[root@localhost nginx]# netstat -tnlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0
 
      0 127.0.0.1:6379          0.0.0.0:*               LISTEN      1352/redis-server 1 
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      16050/nginx: master 
tcp        0      0 192.168.122.1:53        0.0.0.0:*               LISTEN      2479/dnsmasq        
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1142/sshd           
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      1148/cupsd          
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      2321/master         
tcp6       0      0 :::22                   :::*                    LISTEN      1142/sshd           
tcp6       0      0 ::1:631                 :::*                    LISTEN      1148/cupsd          
tcp6       0      0 :::8888                 :::*                    LISTEN      2648/java           
tcp6       0      0 ::1:25                  :::*                    LISTEN      2321/master       

8.如有程序點用了80埠，可以殺掉佔用的程序

netstat -ant 
kill -9 pid

9.訊號控制 停止或啟動nginx

[root@localhost nginx]# ps aux|grep nginx
root      16050  0.0  0.0  20484   612 ?        Ss   00:44   0:00 nginx: master process ./sbin/nginx
nobody    16051  0.0  0.1  23012  1380 ?        S    00:44   0:00 nginx: worker process
root      17288  0.0  0.0 112648   948 pts/1    S+   01:04   0:00 grep --color=auto nginx
[root@localhost nginx]# kill -INT 16050
[root@localhost nginx]# ps aux|grep nginx
root      17477  0.0  0.0 112648   948 pts/1    S+   01:07   0:00 grep --color=auto nginx
[root@localhost nginx]# ./sbin/nginx 
[root@localhost nginx]# ps aux|grep nginx
root      17495  0.0  0.0  20484   616 ?        Ss   01:08   0:00 nginx: master process ./sbin/nginx
nobody    17496  0.0  0.1  23012  1384 ?        S    01:08   0:00 nginx: worker process
root      17500  0.0  0.0 112648   948 pts/1    S+   01:08   0:00 grep --color=auto nginx

vim ./conf/nginx.conf

訪問nginx首頁

curl http://localhost 

10.HUP 優雅的重啟讀取配置檔案

kill -HUP 16050  ( nginx master pid)

1. 也可以用其他的命令

[root@localhost nginx]# ./sbin/nginx -h
nginx version: nginx/1.12.2
Usage: nginx [-?hvVtTq] [-s signal] [-c filename] [-p prefix] [-g directives]

Options:
  -?,-h         : this help
  -v            : show version and exit
  -V            : show version and configure options then exit
  -t            : test configuration and exit
  -T            : test configuration, dump it and exit
  -q            : suppress non-error messages during configuration testing
  -s signal     : send signal to a master process: stop, quit, reopen, reload
  -p prefix     : set prefix path (default: /usr/local/nginx/)
  -c filename   : set configuration file (default: conf/nginx.conf)
  -g directives : set global directives out of configuration file

./sbin/nginx -s reload  相當於 kill -HUP 'cat ./logs/nginx.pid'
./sbin/nginx -s stop  
./sbin/nginx -s quit 
./sbin/nginx -s reopen 相當於 kill -USR1 'cat ./logs/nginx.pid'

11.測試配置檔案是配置正確

[root@localhost nginx]# ./sbin/nginx  -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
[root@localhost nginx]#