Some of these variables are described in NCSA's CGI Environment Variables listing. The current filename. The current date, local time zone. The last modification date of the current document. The only valid argument to the echo command is var , whose value is the name of the variable you wish to echo.
Valid tags are the same as with the include command.
Valid tags are the same as with the include command. Information about server side includes was taken from NCSA's server side includes tutorial , which also describes some commands that are not available on Eniac, such as the exec command.