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The following variables are predefined:


(an underscore character)

Contains the result of last evaluated expression.


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


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


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 Client Configuration).


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


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


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


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.

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