ngxin支持的命令

-? | -h — print help for command-line parameters.
-c file — use an alternative configuration file instead of a default file.
-g directives — set global configuration directives, for example,

nginx -g "pid /var/run/nginx.pid; worker_processes sysctl -n hw.ncpu;"

-p prefix — set nginx path prefix, i.e. a directory that will keep server files (default value is /usr/local/nginx).
-q — suppress non-error messages during configuration testing.
-s signal — send a signal to the master process. The argument signal can be one of:
stop — shut down quickly
quit — shut down gracefully
reload — reload configuration, start the new worker process with a new configuration, gracefully shut down old worker processes.
reopen — reopen log files
-t — test the configuration file: nginx checks the configuration for correct syntax, and then tries to open files referred in the configuration.
-T — same as -t, but additionally dump configuration files to standard output (1.9.2).
-v — print nginx version.
-V — print nginx version, compiler version, and configure parameters.

参考文章

http://nginx.org/en/docs/switches.html
http://www.nginx.cn/nginxchscommandline