> For the complete documentation index, see [llms.txt](https://ploegert.gitbook.io/til/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ploegert.gitbook.io/til/tools/nginx/check-the-syntax-of-nginx-files.md). # Check The Syntax Of nginx Files ## Check The Syntax Of nginx Files The syntax of [`nginx`](https://www.nginx.com/) configuration files can be a bit finicky. On top of that, some `nginx` server commands can fail silently. Get more confidence by using the following command to check for syntax errors in those files: ```bash $ [sudo] nginx -t ``` If there is an error, you might see something like this: ```bash $ sudo nginx -t nginx: [emerg] unexpected ";" in /etc/nginx/nginx.conf:16 nginx: configuration file /etc/nginx/nginx.conf test failed ``` If all looks good, then you'll see this: ```bash $ sudo nginx -t nginx: the configuration file /etc/nginx/nginx.conf syntax is ok nginx: configuration file /etc/nginx/nginx.conf test is successful ``` --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://ploegert.gitbook.io/til/tools/nginx/check-the-syntax-of-nginx-files.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.