around ~2000, my build/install script had to simulate some kind of OO-like inheritance.. And there was python but noone understood it (and even less had it inst

around ~2000, my build/install script had to simulate some kind of OO-like inheritance.. And there was python but noone understood it (and even less had it installed), so: bash - aliases had priority over funcs which had priority to whatever executables found in PATH.. so here you go - whole 3 levels of it, with lowest/PATH being changeable..