13.2.4.6 Built-in Variables

The following variables are predefined:

_

(an underscore character)

Contains the result of last evaluated expression.

REPLY_CODE

Contains the last reply code received from the RADIUS server (integer).

REPLY

Contains the A/V pairs lastly received from the RADIUS server (avlist).

SOURCEIP

Contains the source IP address of the RADIUS client (ipaddr). By default, it equals the IP address set via source_ip statement in your `client.conf' file (see section 13.1 Client Configuration).

INPUT

The value of the input read by input statement (see section input).

OPTVAR

The option obtained by the recent call to getopt (see section getopt).

OPTARG

Argument to the option obtained by the recent call to getopt.

OPTIND

Index of the next command line argument to be processed by getopt. If the last call to getopt returned false, OPTIND contains index of the first non-optional argument in the command line.