It was man pages that first caught my eye, placing me on a life-long path of working
with Unix and its derivatives.
I was working on a project for a telephone company, converting IBM 2780 Bisync to
async, and was given a manual and root access to a Xenix machine. I had cut my
teeth on a Radio Shack TRS-80 and knew BASIC and Z80 machine code.
The machine had BASIC, so that is where I started. I had spent an afternoon
writing a hex dump program before I discovered "od". I spent the next day reading
all the man pages. I was amazed with their simplicity and clarity.
Having finished the man pages, I read the Unix Programmer's Manual cover to cover.
I re-wrote the hex dump in C just for fun. I was sold.
The remarkable simplicity of Unix, the kernel, the commands, the documentation,
is a beautiful thing. And I was fortunate to have found it early in my career.
It was also a time, when the manuals were concise enough to read them all
in a few day's time.