the example chosen is actually quite understandable.

A normal person has to spend quite a while inside the Linux ecosystem to say that after reading this:

For those who wish to use it immediately and understand it later, assign the PARINIT environment variable the following value:  
rTbgqR B=.,?_A_a Q=_s>|   
The spaces, question mark, greater-than sign, and vertical bar will probably have to be escaped or quoted