It's not clear what you mean by "and then returns them in a list as a path to another directory." if you need to copy or move the files, please post a follow-up question. Here's a suggestion for finding the files:

See File::Find::Rule 

my $dir   = '/some/path';
my @files = File::Find::Rule->file()
                              ->name( '*.tar' )
                                ->in( $dir );

[download]
Edit: simplified example
The way forward always starts with a minimal test.

In reply to Re: look through directory for tar files only by 1nickt
in thread look through directory for tar files only by yunglean808

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