Welcome to the Monastery! Your other post a couple of days ago was about the basics of learning Perl. Today I see you've posted that you installed Perl on Mint. It feels like you have a goal in mind with both Linux and Perl. Maybe sharing that goal will help people direct you to the best learning resources.

Also, if you don't have a project in mind, may I suggest finding one? I find the easiest way for me to learn something new is to have a clear goal or project that I'm working toward. Then, as I move toward solving that problem, I learn all kinds of things, some of which may apply to my project and some which won't. Either way, the end result I'm striving for provides me the on-going motivation to learn about the tools I've chosen. In fact, this is how I taught myself what Perl I know.

Perl is a powerful and versatile tool, but there's a lot to it and it will take some time to learn and use it well. Have patience and stick to it and you'll learn to love it as the rest of the monks here do. Don't give up! Once you get the basics, PerlMonks.org is a fantastic resource to help you answer specific questions about specific issues you may run into.