But what does "view shtml top" actually mean? Is it a command, a code snippet, or a troubleshooting step?
| Feature | SHTML (SSI) | Modern PHP/Python | Static Site Generators (SSG) | | :--- | :--- | :--- | :--- | | | Every page request | Every request (or cached) | Build time only | | Top Nav example | <!--#include --> | <?php include('top.php');?> | % include 'top.html' % (Jekyll/Hugo) | | Performance | Slow (disk I/O per request) | Moderate (opcode caching) | Fastest (pure HTML) | | Best for | Legacy intranets | Dynamic apps | Blogs, marketing sites | view shtml top
AddType text/html .shtml AddOutputFilter INCLUDES .shtml Symptoms: The page loads forever or crashes. Check: Does top.shtml include index.shtml ? View the top of both files: But what does "view shtml top" actually mean
<!--#include virtual="/top_nav.shtml" --> Ensure the path is correct. virtual starts from server root, file starts from current directory. Also ensure your .htaccess or Apache config has Options +Includes . Issue B: You See SSI Code in the Browser Symptoms: Your browser literally shows <!--#include virtual="top.shtml" --> as text. Cause: SSI is not enabled on the server. Fix (Apache): Rename the file to .shtml (if not already) or add this to .htaccess : Check: Does top
<!--#exec cmd="top" --> <!-- Executes system commands --> <!--#include virtual="/etc/passwd" --> <!-- File inclusion --> If your server allows #exec , an attacker who can inject code into your "top" include file could run rm -rf / or read sensitive data. Always disable #exec in your Apache config:
head top.shtml head index.shtml If top.shtml has <!--#include virtual="index.shtml" --> , you have created an infinite loop. While "view shtml top" is a valid technical skill, you should rarely be writing new .shtml files in 2025. Here is why, and what to use instead.