Is 'ksh' available.

[Henry Spencer]

> ... this is fine for stuff on your screen, but not
> very useful when the command has scrolled off of your screen, or worse
> yet, was something you previously executing 50 commands ago.

As the Gospel According To Saint Pike makes clear, terminals should not
let stuff scroll off without your permission.  Furthermore, if there is
any likelihood that you will want it again, it should be saved somewhere.
By a centralized facility, not by code built into every interactive command
interpreter.
-- 
				Henry Spencer @ U of Toronto Zoology
				{allegra,ihnp4,linus,decvax}!utzoo!henry