Yes, absolutely!

At one point it made sense for everyone to learn Perl because it was the de facto scripting language for server side components of the, then brand new, World Wide Web. Nowadays backend software development and other Perl niches like shell scripting are crowded with competitors. But that does not invalidate Perl in the least! Indeed, Perl is still the best "power tool" available to a systems programmer, system administrator, or anyone working in the realm of "shell scripts".

Learn Perl because it is the most powerful way to write scripts on Linux (or any other Unix like operating system).