|Server Side Include (SSI) commands
are executed by the server as it parses your HTML file. Server
side includes can be used to include the value of various server
environment variables within your HTML such as the local date and
time. One might use a server side include to add a signature file
to an HTML file or company logo.
Note: SSI can only work on
an account with CGI functionality enabled (i.e. RS-Per and higher)
HTML files containing SSI must be named
differently than normal HTMl files. On our UNIX servers, SSI files
must end in .shtml, whereas on NT servers files can be named .shtml,
.shtm, or .stm .
SSI commands are easy to add to your HTML,
but you must follow the syntax exactly:
- <!--#command cmd_argument="argument_value"
Be sure to leave a space after the ending
quotation mark (") of the argument variable.
Using the echo Command
The echo command can be used to
display the content of the five server side environment variables
listed in the table below.
Date_Local Current date and time (determined by server location).
Date_GMT Current date and time in Greenwich Mean Time.
Document_Name File name of the main document.
Document_URI Path and file name of the main document
Last_Modified Date and time the main document was last modified.
Date and time determined by server location.
<!--#echo var="Date_Local" -->
output: Monday, 14-Jul-97 11:33:04 EDT
Using the config Command
The config command can be used to
configure the standard output of various environment variables. In
the following example, two SSI commands are used in conjunction to
produce an alternative date and time format:
<!--#config timefmt="%A, %B %d, %Y %I:%M%p" -->
<!--#echo var="date_local" -->
output: Monday, July 14, 1997 11:33AM
Here is a breakdown date and time codes used
in the example above:
%A Full weekday name
%B Full month name
%d Day of the month
%p a.m. or p.m.
If the time does not show in your date
command, you may need to preceed it with the following command:
<!--#config timeframe="time options" -->
Other SSI Commands
The fsize command might be helpful if
you were to include a thumbnail image and want to display the
actual file size of the original image.
<!--#fsize file="image.gif" --> output: 10.3k
The include command can be used to
include a signature file or company logo within an HTML document.
The added document or image will appear as if it were part of the
<!--#include file="any.htm" -->
If the file to be included is in a different
directory than the SSI document. use the virtual command
argument instead. In the following example, the SSI document
resides in a subdirectory but includes a file within account root
<!--#include virtual="/any.htm" -->
The exec command can be used to
execute a CGI script when the web page is loading. In the
following example, the script date.pl within the relative path /cgi-local
<!--#exec cgi="/cgi-local/date.pl" -->
You could also use the virtual
<!--#include virtual="/cgi-local/script.pl?var1=value1&var2=value2" -->
This is more or less a get your feet wet
page. To take the plunge, check out these