I didn't think anyone would know. It's so commonly referred to in source code installation instructions that don't make any sense most of the time either.
From what I've found usr stands for Unix System Resources which begs the question what does usr/local mean. Is this a directory? What does it refer to.
If I put usr/local/bin , does it mean that I'm referring to a 'bin' directory declared in the system 'Path' environmental variable "usr/local" ?
I'm guessing but from what I've read it came from the days when memory was scarce and a computers entire software contents needed to be stored on two hard drives. Could it mean that "usr/local" refers to ALL THE UNIX SYSTEM RESOURCES on THIS HARD
DRIVE (the local hard drive)... It's a guess.
Hence the reference usr/local/bin, refers to the location of the 'bin' directories path in relation to the system resources on this hard drive.
Will be interested to hear if I'm close or not...
Clearly I'm not going to get an answer unless I start with something..