ument.
             You must declare variables before you use them. When you declare a variable, you must also define its type. A variable of a certain type may only contain values of that same type. The following three types of variables are supported:
             integer A negative or positive number, such as 7, -12, or 5698.
             string A series of characters enclosed in double-quotes; for example, "Hello world!" or "Enter password:".
             boolean A logical boolean value of TRUE or FALSE.
             Variables are assigned values using the following assignment statement:
             The variable gets the evaluated expression.
             System variables are set by scripting commands or are determined by the information your enter when you set up a Dial-Up Networking connection. System variables are read-only, which means they cannot be changed within the script. The system variables are:
             $USERID String The user identification for the current connection. This variable is
             the value of the user name specified in the Dial-Up Networking
             $PASSWORD String The password for the current connection. This variable is the
             value of the user name specified in the Dial-Up Networking
             $SUCCESS Boolean This variable is set by certain commands to indicate whether or not the command succeeded. A script can make
             decisions based upon the value of this variable.
             $FAILURE Boolean This variable is set by certain commands to indicate
             whether or not the command failed. A script can make decisions
             based upon the value of this variable.
             These variables may be used wherever an expression of a similar type is used. For example,
             is a valid command because $USERID is a variable of type string.
             Scripting for Dial-Up Networking supports escape sequences and caret translations, as described below.
             If char is a value between '@' and '_', the character sequence is translated into a single-byte value between 0 and 31. For example, ^M is converted to a carriage r...