How to debug a perl script?

[chandrasekarsm]

Hi 
       Could anybody clarify the following:
1.      Is there any option available for debugging perl script?

2.      What are these following options?
                Perl -d <scriptname>.perl
                Perl -e <scriptname>.perl

3.      How to write a function in perl for the following?
        The following is the string which I want to perform inside a
function. 
       @progarg = ("sqlplus","$ENV{"USERID"}/ $ENV{"PASSWD"}\@
$ENV{"DBINST"}","\@$ENV{"HOME"}/cfn.sql 
                             $args");
         
        Here each of the string within " " is added in the list progarg, and
is then executed as system(@progarg);
        If we change the above as
      $rc = &progarg("sqlplus","$ENV{"USERID"}/ $ENV{"PASSWD"}\@
$ENV{"DBINST"}", 
                "\@$ENV{"HOME"}/cfn.sql $args");

        How do we perform sub <functionname> (sub progarg) ?  Here the last
argv has one more command line argv($args) which is required inside the
cfn.sql file.

        And also I want to use the "-s" option for sqlplus like below
        "Sqlplus -s << EOF
        $ENV{"USERID"}/ $ENV{"PASSWD"}\@ $ENV{"DBINST"}
        whenever sqlerror exit 2;
        \@$ENV{"HOME"}/cfn.sql $args
        EOF"

Please reply to my mailid.

Thanks in advance,
Chandrasekar.



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