SSI Server Side Includes
Server Side Includes (SSI) is an interpreted Perl like programming language embedded within html pages that can run commands thatInclude another file, Display dates and time from the server or Display file information. In order to instruct the server to process a page containing SSI you must name the page must be run from within your public_html directory or sub directory and end in the .shtml suffix ie: somefile.shtml
Correct SSI syntax is critical.
The Include Command : <!--#include file="included.html" -->
The File Argument: <!--#command argument="value" -->
The Virtual Argument: <!--#include virtual="/directory/included.html" -->
The Included File: can be html or .txt file