I'm having trouble understanding your question Sunita. Maybe if you say:

==
I want to write a subroutine "helpme" which takes two arguments
a hashref and a string. Calling

helpme($cmd_param_show, $some_string)

would return

$some_other_string
==
and explain what $some_string and $some_other_string are, I'd be able to
provide a solution! :)

Andrew


On Thu, Jun 18, 2015 at 10:26 AM, Sunita Pradhan <
sunita.pradhan.2...@hotmail.com> wrote:

> Yeah I am able to access the value but how to get the key ?
>
> -Sunita
>
> ------------------------------
> From: akshaymohit2...@gmail.com
> Date: Thu, 18 Jun 2015 14:46:10 +0530
> Subject: Re: want to access single value in a hash
> To: sunita.pradhan.2...@hotmail.com
> CC: beginners@perl.org
>
>
> Try this:-
> print
> "$cmd_param_show->{'scsitrace_start_log_to_disk_true'}->{'param_val'}->{'log-to-disk'}\n";
>
> -Akshay
>
> On Thu, Jun 18, 2015 at 2:35 PM, Sunita Pradhan <
> sunita.pradhan.2...@hotmail.com> wrote:
>
> I have following data structure :
>
> my $cmd_param_show = {'scsitrace_start_log_to_disk_true' =>
>                          {'param_val'=>{'log-to-disk' => 'true'},
>                           'scsitrace_show' => {'log-to-disk'    => 'true',
>                                             'enabled'        => 'true',
>                                             'max-chain-size' => 16,
>                                             'max-file-size'  => 0}},
>                   'scsitrace_stop' =>
>                    {'param_val'=>{},
>                     'scsitrace_show' => {'log-to-disk'    => 'false',
>                                             'enabled'        => 'false',
>                                             'max-chain-size' => 16,
>                                             'max-file-size'  => 0}},
>                    'scsitrace_start' =>
>                     {'param_val'=>{},
>                      'scsitrace_show'  => {'log-to-disk'    => 'false',
>                                             'enabled'        => 'true',
>                                             'max-chain-size' => 16,
>                                             'max-file-size'  => 0}},
>                    'scsitrace_dump' =>
>                      {'param_val'=>{},
>                       'scsitrace_show' => {'log-to-disk'    => 'false',
>                                             'enabled'        => 'false',
>                                             'max-chain-size' => 16,
>                                             'max-file-size'  => 0}},
>                                            };
>
> How can I access single value from this hash without using loop ?
>
> I tried to print like :
> print
> "%{$cmd_param_show}->{'scsitrace_start_log_to_disk_true'}->{'param_val'}\n";
>
> It failed .
> Please help me to get this.
>
> Thanks
> Sunita
>
>
>


-- 
Andrew Solomon

Mentor@Geekuni http://geekuni.com/
http://www.linkedin.com/in/asolomon

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