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RASExpress User Guide

150 CommPlete Communications Server

Introduction to the RASExpress Script Language

The RASExpress script language is a set of commands that can be used to perform

LAN-to-LAN login operations. A script file can be useful for both simple and

complex operations, such as dialing a number, logging onto a server, downloading

files, and so on.

You can create a script file without programming experience if you have program-

ming “intuition.” If you have had some exposure to C language or BASIC pro-

gramming, so much the better. This chapter does not attempt to teach you how to

program; rather, it describes the commands you can use when creating a script file.

An Overview of the RASExpress Script Language

A RASExpress script file consists of commands, arguments, and variables. You should un-

derstand the differences between them before you attempt to create a script file.

Commands

A command is an executable function. RASExpress commands have the following

constraints:

• The first word on a command line is the command name.

• Each command must be on a separate line.

• Each command is terminated by a semicolon.

• /* in a command line indicates the start of a comment, and */ indicates the end of a

comment (all comment characters and the markers are ignored).

• Extra arguments in the command line are ignored.

Script files are created by putting together specific commands that produce specific

results. For example, if you want to prompt the user for information, you must in-

clude a command to display the prompt on the screen as well as a command to re-

trieve the response of the user. This chapter lists all commands recognized in the

RASExpress environment.

Note: Command elements that appear in bold must be typed exactly as they appear.

Elements that appear in italic are placeholders that must be replaced by actual

information. Brackets [ ] enclose optional items. Braces { } enclose a set of choices

from which you must choose only one. Choices are separated by a vertical bar |.

For additional information on formatting within a script file, see “Format String and

Format Control Characters” on page 151.

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