1.啟動

/usr/local/nginx/sbin/nginx

2.重啟

/usr/local/nginx/sbin/nginx -s reload

3.關閉

/usr/local/nginx/sbin/nginx -s stop

4.檢驗配置文件

/usr/local/nginx/sbin/nginx -t

5.再啟動nginx服務時，無法正常啟動，報錯誤信息如下

[root@localhost nginx]# /usr/local/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]# /usr/local/nginx/sbin/nginx -s reload nginx: [error] invalid PID number "" in "/usr/local/nginx/logs/nginx.pid"

-t 沒問題，reload就報錯了。因為是加載配置文件報的錯，所以用-c 選項指定配置文件 ，如此指明后問題解決搜了一下解決：

[root@localhost logs]# /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf

6.此時如果nginx進程殺死后pid丟失了，下一次再開啟nginx -s reload時無法啟動，重裝可以解決這個問題，但是太麻煩了，也可以用

[root@localhost logs]# /usr/local/nginx/sbin/nginx -c /usr/local/nginx/logs/nginx.pid

注：看是不是端口被占用

ss -nulpt

7.記錄我的一個報錯

1.先用網上查的方法測了

[root@localhost logs]# /usr/local/nginx/sbin/nginx -s reload
nginx: [error] open() "/usr/local/nginx/logs/nginx.pid" failed (2: No such file or directory)

[root@localhost logs]# /usr/local/nginx/sbin/nginx -c /usr/local/nginx/logs/nginx.pid
nginx: [emerg] open() "/usr/local/nginx/logs/nginx.pid" failed (2: No such file or directory)

2.查看是否啟動

[root@localhost logs]# ss -nulpt? | grep :80
tcp??? LISTEN???? 0????? 128?????????????????????? *:80??????????????????????????????????? *:*?????????????????? users:(("nginx",pid=4488,fd=6),("nginx",pid=4487,fd=6))

[root@localhost logs]#? pgrep nginx
4487
4488

3.嘗試手動關閉

[root@localhost nginx]# /usr/local/nginx/sbin/nginx -s stop
nginx: [error] open() "/usr/local/nginx/logs/nginx.pid" failed (2: No such file or directory)

[root@localhost logs]#? killall -9 nginx

[root@localhost logs]#? ps -auxf | grep nginx
root????? 4518? 0.0? 0.0 112720?? 984 pts/1??? S+?? 21:28?? 0:00????????? \_ grep --color=auto nginx

4.重啟就好啦

[root@localhost logs]#? /usr/local/nginx/sbin/nginx

[root@localhost logs]# ss -nulpt | grep nginx
tcp??? LISTEN???? 0????? 128?????? *:80??????????????????? *:*?????????????????? users:(("nginx",pid=4521,fd=6),("nginx",pid=4520,fd=6))

[root@localhost logs]# ls
access.log? error.log? nginx.pid

一開始百度解決該問題。只是找到幾個求助答案。沒有實際有效的方法，搜到的也是-c的那個

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