[TUHS] Origins of shell prompt suffixes % $ > #

[Lyndon Nerenberg]

> The prompt I have used since about 1997 (and I can't remember where I got
> it from - somewhere on Usenet, probably) in its most distilled form is
>
> :;

I forget where I stole this from. It lives in $home/lib/profile on my 
Plan9 machines:

# /n/sources/contrib/lyndon/prompt.rc
fn : {}
fn setprompt {
         prompt = (': '^`{cat /dev/user}^@^`{cat /dev/sysname}^':'^`{pwd}^'; '  '        ')
}
fn cd { builtin cd $* && setprompt }
setprompt