Or Ruby, or TCL...

I didn't know that there are still people out there that program in Perl or Tcl??

Booking.com is mostly Perl and doing gangbusters. Tcl is, for example, the lingua franca for F5 load balancers. I have more examples, but both are far from dead.

Tcl is a household name in the field of EDA tool scripting.

Virtually all software tools designed by Cadence, Synopsys, and Mentor include a Tcl REPL/console.

Any task performed in the GUI is actually executed in the REPL, making it easy to replicate a specific flow by just copy/pasting the commands displayed in the REPL into a Tcl script.

To load a script, you simply pass it as an argument when running the software.

There are. There's even a Perl 6 that is production ready: https://perl6.org

or PowerShell