Example Script: Filament Counter The above script doesn’t yet modify the G-code, so let’s write one that actually does something.

To see how associative arrays work, we’re going to look at both the Korn shell and Perl, though only the newest version of the Korn shell (referred to as “korn93”) supports associative arrays.

It turns out there might be a closer connection between the two than you’d think, as a software engineer discovered that random paint splatters are actually valid Perl code in disguise.