> most people writing python would write 'rm - rf' if for some reason they had variables with those names (why would you name it that?) that they needed to subt

> most people writing python would write 'rm - rf' if for some reason they had variables with those names (why would you name it that?) that they needed to subtract. I can see myself naming variables that way, when doing a geometric computation. Being a mathematician, all my variable names are single letters. But sometimes I have variants of a name that merit a second letter, like a sub-index. Maybe I use "r" for the current radius of an object and "rm" for the "middle" radius and "rf" for the "final" radius after some polishing process. Then I want to see how much material I'm losing from the object in the middle. Thus "rm -rf" (yes, the missing space is a typo).