You can pass the -v or -V option to display nginx web server version. The syntax is:
nginx -v |
Sample outputs:
nginx version: nginx/1.2.3
The -V option shows nginx version, compiler version and configure parameters.
nginx -V |
Sample outputs:
nginx version: nginx/1.2.3 built by gcc 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) TLS SNI support enabled configure arguments: --without-http_autoindex_module --without-http_userid_module --without-http_auth_basic_module --without-http_fastcgi_module --without-http_empty_gif_module --with-poll_module --with-http_stub_status_module --with-http_ssl_module --with-ipv6 --with-http_geoip_module