hii Perlbotics
i have tried your suggestion but the error prevails only replacing File/copy/recursive.pm to File/Ncopy.pm
how to install File::Ncopy then

Hello mrityunjaynath,

No, stick with the File::Copy::Recursive module. File::NCopy is deprecated, according to its own documentation:

File::NCopy - Deprecated module. Use File::Copy::Recursive instead.

To learn how to install modules, see the Monastery’s Installing Modules tutorials. If you already have App::cpanminus installed, the process is as simple as entering:

>cpanm File::Copy::Recursive
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from the command line.

Another point: Where does $newpath come from? You need to declare and initialise it before it’s used:

...
my $newpath = ...;  # Provide an initial value here
my $source_dirrtl = $newpath . "/rtl";
...
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Hope that helps,

Athanasius <°(((>< contra mundum

Iustus alius egestas vitae, eros Piratica,

I'm not sure you understand what people and perl are telling you. The perl error means that File::Copy::Recursive is not installed. The module documentation explains how to install it. Use the cpan method so that dependencies are also installed.

Later in your code you have:

my $cp = File::NCopy->new(recursive => 1);
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Your code does not have a use line for this module, like you do have for the other modules.

I wouldn't recommend manually moving modules around unless you understand what you are doing. In addition I would suggest you take a step back and review the code you've posted.

you may be right... i am new to perl ..
as i said i have a source_folder containing some folders and files , i want to copy this folder and its subfolder and files to a target_directory. is there a way around for this thing....
i am able to copy files but not subfolder

how to install File::Ncopy then

See A Guide to Installing Modules from the Tutorials section.