Perl

Perl is one of the languages that built the internet, it is still used for many things, and is specially well suited to parse and manipulate text. Perl has existed for over 30 years, and is used by a large number of people, which has produced a rich ecosystem with lots of libraries and a very strong community. Perl 5, is still in use, still under active development, and it is a very valuable tool for your engineers.

You will find Perl 6 already exists and is stable and usable, but chances are that if your company has been using Perl for a while it is Perl 5, Perl 6 is not a replacement of Perl 5, is just another flavor of Perl, Perl 5 is still the most used Perl language.