Thanks for your response. Now i able to narrow down the issue. I am getting desired output if i execute the script under /amex/lcd directory. If i copy the script to /amex/log/ directory and execute the script, i am getting below error. 
$pwd
/amex/lcd
$./CA.pl
<password>  ## printing password as expected
$cd /amex/log
$./CA.pl    ## not printing the password from different location other
+ than /amex/lcd
Can't call method "param" on an undefined value at
        /ontw/etc/lcd/PWCCAauth_succ.pl line 108 (#1)
    (F) You used the syntax of a method call, but the slot filled by t
+he
    object reference or package name contains an undefined value.  Som
+ething
    like this will reproduce the error:

 

        $BADREF = undef;
        process $BADREF 1,2,3;
        $BADREF->process(1,2,3);

[download]
Am i missing something that you can help me with ? If i sort out this issue of getting the password executed from all directory other than /amex/lcd, then i will able to get main.pl executed without issue. Thanks in advance.

In reply to Re^8: How to call particular parameter from another configuration file in perl by Prakee
in thread How to call particular parameter from another configuration file in perl by Prakee

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